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  • 1980-1984  (4,409)
  • 1965-1969  (1,872)
  • Analytical Chemistry and Spectroscopy  (4,636)
  • Industrial Chemistry  (1,519)
  • Insulin
  • Nuclear reactions
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  • 1
    Electronic Resource
    Electronic Resource
    Vanadate stimulates the pumped movements of Na in skeletal muscle (1984)
    Springer
    Pflügers Archiv 400 (1984), S. 413-417 
    Details
    ISSN: 1432-2013
    Keywords: Sodium pump ; Na-K ATPase ; Na fluxes ; Vanadate ; Insulin ; Skeletal muscle ; Ouabain
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract We have measured the effects of concentrations of vanadate ranging between 0.01 and 10 mM on the22Na efflux of frog sartorius muscles. The addition of vanadate had no effects when concentrations lower than 0.5 mM were used; higher concentrations increased Na efflux. The increase was abolished by the addition of ouabain (10−5M). In muscles pretreated with ouabain vanadate did not modify Na efflux. The stimulatory effects of vanadate on Na efflux were also observed in Na-free solutions indicating that the effux of vanadate was not caused mainly either by an increase in the exchange of Na for Na or by an increase in Na entry into the muscle. We also examined the effects of vanadate on muscles immersed in solutions containing 20 mM K+; both vanadate and increased K+ produced stimulations of Na efflux that were additive. Similarly when the effects of vanadate and insulin were measured on the Na efflux of the same muscle, additive effects were found. As the ouabain-sensitive Na efflux in frog muscle is generally agreed to be due to the activity of the Na-K ATPase, our findings suggest that the net effect of vanadate in intact muscle cells is an increase in the activity of the Na pump. Since vanadate affects many enzymes it is quite possible that the stimulatory action is not due to a direct effect on the Na-K ATPase but may be mediated through an intermediary step. Regardless of the specific mechanism, it is evident that, our results as well as other findings in the literature, strongly indicate that Na pumping by intact cells can be increased by vanadate administration. Hence it is not justified to attribute the physiological modifications caused by vanadate administration to blockade of the Na-K ATPase unless the attribution is justified by specific experimental evidence.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00587542
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  • 2
    Electronic Resource
    Electronic Resource
    Factors governing the human immune response to injected insulin (1984)
    Springer
    Diabetologia 26 (1984), S. 266-271 
    Details
    ISSN: 1432-0428
    Keywords: Insulin ; insulin antibody ; immunogenicity ; immune response genes ; haemocyanin ; HLA ; DR7 ; C2 ; C4 ; factor B ; Gm ; C-peptide
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Seventy-nine patients were observed prospectively during their initial period of treatment with conventional bovine insulins. Insulin antibody levels 6 months after starting insulin therapy did not correlate with age, gender or β cell function at onset of treatment. Patients who required soluble insulin in addition to isophane insulin developed higher levels of insulin antibody. Patients bearing the HLA-B8, DR3 and C4AQO alleles had lower levels of insulin antibody, whereas those bearing DR7 produced significantly higher levels. Other alleles at the C4A, C4B, C2, factor B or Gm loci did not appear to have a significant effect on insulin antibody production. The hyporesponsiveness of B8/DR3/C4AQO-positive individuals probably reflects a non-specific abnormality of immunity whereas the enhanced responsiveness of those positive for DR7 suggests the presence of a specific immune response gene for insulin
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00283648
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  • 3
    Electronic Resource
    Electronic Resource
    Evidence for post-transcriptional regulation by insulin of 3-hydroxy-3-methylglutaryl coenzyme A reductase and sterol synthesis in human mononuclear leucocytes (1984)
    Springer
    Diabetologia 26 (1984), S. 366-369 
    Details
    ISSN: 1432-0428
    Keywords: Insulin ; 3-hydroxy-3-methylglutaryl coenzyme A ; sterol synthesis ; human mononuclear leucocytes ; post-transcriptional regulation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Incubation of freshly isolated human mononuclear leucocytes in lipid-depleted serum for 4 h resulted in a two-fold increase in 3-hydroxy-3-methylglutaryl coenzyme A (HMG-CoA) reductase activity. Insulin, when added to the incubation medium at concentrations of 10 and 100 nmol/l at zero time, caused additional increases in the enzyme activity of 30% and 37%, respectively. The hormone action was not immediate because no effect was observed when insulin was added at 4 h and activity examined thereafter. Under these conditions sterol synthesis from 14C-acetate and tritiated water was strictly proportional to the activity of HMG-CoA reductase. Cycloheximide (20 μg/ml), a translational inhibitor of protein synthesis, prevented the insulin-mediated increase in the enzyme activity and the incorporation of 14C-acetate into sterols. Cordycepin (50 μg/ml) inhibited messenger RNA synthesis by 〉 50%, but had no inhibitory effect on the induction of HMG-CoA reductase and sterol synthesis. Low density lipoprotein (80 μg protein/ml) and complete serum blocked the induction of the enzyme and sterol synthesis from 14C-acetate caused by lipid-depleted serum. The insulin-effect, however, remained unchanged. The results suggest that insulin may regulate the de novo synthesis of HMG-CoA reductase and accordingly sterol synthesis at a post-transcriptional level.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00266038
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  • 4
    Electronic Resource
    Electronic Resource
    Effect of contact material on vibration-induced insulin aggregation (1984)
    Springer
    Diabetologia 27 (1984), S. 373-378 
    Details
    ISSN: 1432-0428
    Keywords: Insulin ; administration and dosage ; therapeutic use ; insulin infusion devices
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The tendency of insulin to form insoluble aggregates is a major obstacle to the development of implantable insulin infusion systems for treatment of insulin-deficient diabetic patients. A test system was developed to examine the kinetics of insulin aggregation under controlled conditions of temperature, vibration and contact material in an effort to provide design criteria for minimising aggregation. The contact materials tested were all potentially suitable for pump reservoirs on engineering criteria and included metals (stainless steel, titanium and a titanium alloy) and various plastics (polypropylene, polytetrafluoroethylene, Polyvinylchloride, polyamide, cellulose butyrate and silicone elastomer). The rate of insulin aggregation was markedly affected by the nature of the contact material. Hydrophilic materials, particularly polyamide and cellulose butyrate (2% of total insulin aggregated after 96 h vibration), appeared more compatible with insulin stability than did hydrophobic ones, such as polypropylene (16% aggregation) and Polyvinylchloride (37% aggregation). A specially formulated ‘pump’ insulin preparation, stabilised by addition of polyethylenepolypropyleneglycol, was significantly superior (three to five times more stable) to a regular neutral insulin formulation under most, but not all, conditions. Standard clinical syringes (polypropylene) performed poorly with both insulin formulations but especially with the neutral regular insulin (100% aggregation after 96 h vibration). In addition to physical aggregates, significant amounts (5%–30%) of the insulin remaining in solution were no longer detectable by immuno- or receptorassay in all materials tested. Appropriate combinations of insulin formulations and materials can minimise insulin aggregation and denaturation, but since the mechanisms involved are as yet poorly understood, realistic testing of proposed reservoir components and insulin formulations must be a prerequisite in insulin infusion pump planning and design. These testing procedures should be designed to test for denaturation in solution as well as for precipitation of insulin.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00304853
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  • 5
    Electronic Resource
    Electronic Resource
    Effect of co-ingestion of fat on the metabolic responses to slowly and rapidly absorbed carbohydrates (1984)
    Springer
    Diabetologia 26 (1984), S. 50-54 
    Details
    ISSN: 1432-0428
    Keywords: Insulin ; gastric inhibitory polypeptide ; insulin sensitivity ; glucose tolerance ; diabetes ; diet ; fat ; rate of carbohydrate digestion
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The present study examined the acute effects of coingestion of fat (37.5 g) on the post-prandial metabolic responses to 75 g of carbohydrate which was either slowly absorbed (lentils) or rapidly absorbed (potatoes). Co-ingestion of fat resulted in a significant flattening of the post-prandial glucose curves, the effect being more pronounced for the rapidly absorbed potatoes. This was probably due to delayed gastric emptying. However, the post-prandial insulin responses to either carbohydrate were not significantly reduced by fat, suggesting that the insulin response to a given glucose concentration was potentiated in the presence of fat. The gastric inhibitory polypeptide (GIP) responses to both carbohydrates were greatly increased in the presence of fat. To investigate further the possible roles of GIP in the entero-insular axis, a 5-g bolus of glucose was injected intravenously 1 h after lentils ± fat. This was sufficient to raise the glucose levels above the threshold reported for GIP to potentiate insulin secretion. However, despite the large differences in circulating GIP levels, the insulin response to glucose was not affected by the presence of fat. These results suggest that (1) the rate of absorption of carbohydrate is a major determinant of post-prandial metabolic responses even in the presence of fat, (2) fat-stimulated GIP secretion does not potentiate glucose-induced insulin secretion, and (3) the potentiation of the insulin response to glucose when carbohydrate is co-ingested with fat is consistent with the well-documented insulin resistance associated with high fat diets.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00252263
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  • 6
    Electronic Resource
    Electronic Resource
    Long-term follow-up of children with craniopharyngioma (1984)
    Springer
    European journal of pediatrics 142 (1984), S. 179-185 
    Details
    ISSN: 1432-1076
    Keywords: Craniopharyngioma ; Growth ; Insulin ; Neurosurgery ; Radiotherapy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Management of craniopharyngiomas is still controversial. 28 children with this tumor were studied. GH deficiency was present in 22 patients following surgery, 10 of these GH-lacking patients had normal or accelerated growth (usually associated with rapid weight gain) postoperatively. Somatomedin levels were normal in three of six normally growing patients. After craniotomy their basal and TRH-stimulated prolactin levels were in the normal range, but their insulin secretion was markedly increased. Postoperatively there was a significant correlation between peak insulin levels following arginine infusion and growth velocity in all patients. Complete tumor removal could be performed in 28% of our patients. Altogether 36% of all patients had at least one tumor recurrence. Recent literature with the addition of our series showed tumor recurrence in 22% of patients with “total” tumor excision and in 72% of patients with partial tumor removal. Radiotherapy seems to be capable of destroying craniopharyngioma tissue. The recurrence rate was only 26% in patients with subtotal excision plus radiotherapy. Unless radical tumor removal can be attempted with safety, subtotal tumor removal plus radiotherapy appears to be the treatment of choice for craniopharyngioma.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00442445
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  • 7
    Electronic Resource
    Electronic Resource
    Inotropic effect of prenalterol in amitriptyline poisoning (1984)
    Springer
    Intensive care medicine 10 (1984), S. 209-211 
    Details
    ISSN: 1432-1238
    Keywords: Amitriptyline ; Hydrocortisone ; Insulin ; Prenalterol ; Cardiac failure
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract A case of severe amitriptyline poisoning with grade IV coma, seizures, bradycardia and hypotension who did not respond to dopamine was successfully treated with prenalterol, a new cardioselective β-agonist. The case is discussed with respect to plasma concentrations of dopamine, prenalterol and amitriptyline. Prenalterol, hydrocortisone and insulin may be useful as inotropic agents in tricyclic poisoning where dopamine fails to provide an adequate response.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00259441
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  • 8
    Electronic Resource
    Electronic Resource
    Energetics of active sodium-potassium transport following stimulation with insulin, adrenaline or salbutamol in rat soleus muscle (1984)
    Springer
    Pflügers Archiv 401 (1984), S. 160-166 
    Details
    ISSN: 1432-2013
    Keywords: Biological transport ; Insulin ; Energy metabolism ; Epinephrine ; Endocrinology ; Albuterol (salbutamol) ; Active sodium-potassium transport ; Muscle
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract The total metabolic energy expenditure associated with active Na−K-transport over the first 20 min of stimulation with insulin, adrenaline or salbutamol (ΔHmNa−K) was determined from direct calorimetric and tracer ion flux measurements in isolated muscles at rest. The reversible work performed by the Na−K-pump during the same interval of time (WrevNa−K) was calculated as the product of the ouabain-suppressible Na−K transfers and the mean free energy increase imparted to the two ions as they are transported against their electrochemical gradients across the plasma membrane. Comparison of membrane potential and intracellular Na and K concentrations before and after the stimulations indicated that part of WrevNa−K had contributed to increase the ion electrochemical gradients in the preparation (i.e. had not been lost as heat) during the 20 min period. Accordingly, the maximum value of ΔHmNa−K was taken as the sum of the ouabain-suppressible heat production and WrevNa−K. Following stimulation with insulin, adrenaline or salbutamol this maximum corresponded to 10, 10 and 12% respectively, of basal metabolism. Under the same three conditions, the minimum “energetic efficiency” of the active Na−K-transport process, defined as the ratio between WrevNa−K and maximum ΔHmNa−K, was 35, 41 and 38%, respectively.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00583876
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  • 9
    Electronic Resource
    Electronic Resource
    Neurotensin — Was ist gesichert über seine Rolle als Hormon im Magen-Darmtrakt? (1984)
    Springer
    Journal of molecular medicine 62 (1984), S. 523-530 
    Details
    ISSN: 1432-1440
    Keywords: Neurotensin ; Gastrointestinal hormones ; Gastric secretion ; Pancreatic secretion ; Motility ; Insulin ; Glucagon
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Neurotensin is a tridecapeptide originally isolated and characterized from bovine hypothalamus and later, in identical form, from bovine and human intestine. In the rat about 85% of immunoreactive neurotensin is found in the gut and about 10% in the brain. When an antibody specific for the amino terminal region of neurotensin was used the highest concentrations were found in the mucosa of the ileum, while an antibody specific for the biologically active region, the carboxyl terminus, also detected large amounts in the mucosa of the upper gastrointestinal tract. After a meal neurotensin — as measured by carboxyl terminal antibodies — rises after 5 min, a time in which the chymus has not yet reached the ileum, the main source of whole neurotensin. It is therefore possible that the carboxyl terminal molecules of neurotensin, found in the upper gastrointestinal tract, play an important physiological role. In plasma, neurotensin is rapidly degraded into smaller amino terminal and therefore biologically inactive molecules. Increases of carboxyl terminal neurotensin have been found in plasma in only a very few studies. The nature of this immunoreactive material has not yet been established. Therefore, the physiological role of neurotensin as a circulating hormone is unknown. Potential actions of neurotensin include thermoregulation, regulation of hormone release from brain (pituitary hormones) and gut (glucagon, insulin, somatostatin, pancreatic polypeptide), increase of vascular permeability, vasodilatation, inhibition of gastric acid secretion, stimulation of pancreatic secretion and changes of gut motility from the fasting to the fed type.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01727746
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  • 10
    Electronic Resource
    Electronic Resource
    Studies on acute glucose-induced aldosterone suppression: Role of renin-angiotensin system (1984)
    Springer
    Journal of molecular medicine 62 (1984), S. 213-217 
    Details
    ISSN: 1432-1440
    Keywords: Aldosterone ; Glucose ; Insulin ; Potassium ; Renin-angiotensin system ; Cortisol ; Captopril
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Glucose loading is known to cause acute suppression of plasma aldosterone and stimulation of plasma renin activity. The relative contribution of variations in circulating angiotensin II to the regulation of aldosterone secretion following glucose loading was assessed in ten normal subjects. The effects of a standard oral glucose loading test (100 g) on plasma concentrations of glucose, insulin, potassium, aldosterone, renin activity and cortisol were studied (a) under basal conditions, and (b) after inhibition of angiotensin II with the converting enzyme inhibitor captopril (50 mg t.i.d. during 3 days). Under basal conditions the acute increase in plasma glucose and insulin after glucose loading was accompanied by a significant decrease (P〈0.01) in plasma cortisol and aldosterone and by a significant increase in plasma renin activity (P〈0.01); plasma potassium was decreased slightly but not significantly. Following captopril treatment preloading plasma renin activity was increased significantly, most probably reflecting an effective reduction of angiotensin II. Glucose loading caused a similar suppression of plasma aldosterone, as observed under basal conditions. This observation suggests that renin activation does not substantially contribute to the acute regulation of plasma aldosterone after an oral glucose load.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01721046
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  • 11
    Electronic Resource
    Electronic Resource
    Effect of continuous and oscillatory portal vein insulin infusion upon glucose-induced insulin release in rats (1984)
    Springer
    Research in experimental medicine 184 (1984), S. 67-71 
    Details
    ISSN: 1433-8580
    Keywords: Oscillations ; Insulin ; Glucose
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The present study was designed to determine the effect of low dose continuous and oscillatory intraportal insulin infusions upon subsequent glucose-induced insulin release. In overnight-fasted and anesthetized rats with indwelling catheters in the jugular vein, carotic artery, and mesenteric vein insulin was infused intraportally for 3 h via the mesenteric vein catheter at a continuous rate of 45 µU/kg·min, or the same amount of insulin was administered at alternating high (72 µU/kg·min) and low infusion rates (18 µU/kg·min), respectively, in 2-, 4-, 8-, and 16-min cycles (oscillatory infusions). Another group received a continuous infusion of saline. Glucose (0.4 g/kg) was given i.v. 30 min after the end of the insulin or saline infusion. During the 3-h infusion of insulin or saline the peripheral glucose level remained unchanged in all groups. In response to the i.v. glucose load peripheral arterial plasma insulin levels were significantly elevated after preceding oscillatory infusions compared to the continuous insulin infusion. As compared to the group receiving saline the glucose-induced insulin response after continuous insulin infusion was significantly reduced. The plasma glucose responses were not different except for inexplicably elevated glucose levels in the 4-min cycle group. No difference was observed for plasma glucagon levels in all groups. The present data demonstrate an augmented responsiveness of theβ-cell to glucose after a preceding oscillatory infusion of insulin and an impaired responsiveness to glucose after continuous insulin infusion. This indicates that an oscillatory insulin release might be of importance for an adequate regulation ofβ-cell function.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01852224
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  • 12
    Electronic Resource
    Electronic Resource
    Metabolic and hormonal responses to prolonged physical exercise in dogs after a single fat-enriched meal (1984)
    Springer
    European journal of applied physiology 53 (1984), S. 267-273 
    Details
    ISSN: 1439-6327
    Keywords: Exercise ; Triglycerides ; Free fatty acids ; Glycerol ; Insulin ; Catecholamines
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Metabolic and hormonal responses to prolonged treadmill exercise in dogs fed a fat-enriched meal 4 h prior to the exercise were compared to those measured 4 h after a mixed meal or in the postabsorptive state. Ingestion of the fat-enriched meal caused significant elevations in the resting values of plasma triglyceride (TG), free fatty acid (FFA), and glycerol concentrations. A reduction of the plasma TG concentration (from 1.6±0.2 to 1.1±0.10 mmol·l−1,P〈0.005) occurred only in dogs exercising after the fat-enriched meal. No significant changes in this variable were noted in dogs fed a mixed meal, whilst in the postabsorptive state exercise caused an increase in the plasma TG level (from 0.42±0.03 to 0.99±0.11 mmol·l−1,P〈0.01). The exercise-induced elevations in plasma FFA and glycerol concentrations were the highest in the dogs given the fat-enriched meal. Plasma glycerol during exercise correlated with the initial values of circulating TG (r=0.73). The plasma FFA-glycerol ratio, at the end of exercise was lowest in the dogs taking the fat-enriched meal (1.39±0.19), suggesting an increased utilization of FFA in comparison with that in the postabsorptive state (3.27±0.37) or after a mixed meal (2.88±0.55). Basal serum insulin (IRI) concentrations were similarly enhanced in dogs fed fat-enriched and mixed meals, and they were reduced to control values within 60 min of exercise. Plasma adrenaline and noradrenaline concentrations correlated with time of exercise (r=0.84 andr=0.96, respectively) and were unaffected by the nutritional modifications. It is concluded that ingestion of a single fat-enriched meal considerably modifies the exercise-induced changes in lipid metabolism. The pattern of changes in plasma TG, FFA, and glycerol concentrations indicates an enhanced hydrolysis of plasma chylomicron-TG, suggesting that this lipid source may contribute markedly to exercise metabolism.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00776601
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  • 13
    Electronic Resource
    Electronic Resource
    Further increase in high density lipoprotein in trained males after enhanced training (1984)
    Springer
    European journal of applied physiology 52 (1984), S. 426-430 
    Details
    ISSN: 1439-6327
    Keywords: Apoproteins ; Lipoproteins ; Insulin ; Blood lactate ; Physical training
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Eight well-trained males were studied before, during and after 6 months of a progressively increased amount of endurance training in order to elucidate the effects on the apoproteins and apo-lipoproteins. Initially high HDL-cholesterol levels were revealed (1.62±0.15 mmol×l−1, mean ± SE.). After a transient but not significant, slight decline at the onset of the increased training program (1.57±0.06 mmol×l−1) HDL-cholesterol increased gradually to the end of the training period (1.92±0.12 mmol×l−1). There was an increased aerobic capacity as judged by maximal oxygen uptake and by lactate concentration during standardized submaximal work. However, at the end of the training period, a levelling off in maximal oxygen uptake was revealed, while HDL-cholesterol was still increasing. The present data demonstrate that HDL can be influenced by training at all levels of aerobic capacity.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00943374
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  • 14
    Electronic Resource
    Electronic Resource
    Effects of a rapid change in muscle glycogen availability on metabolic and hormonal responses during exercise (1984)
    Springer
    European journal of applied physiology 53 (1984), S. 57-62 
    Details
    ISSN: 1439-6327
    Keywords: Muscle glycogen ; Time sequence ; Free fatty acids ; Insulin ; Exercise in humans
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary To evaluate the metabolic and hormonal adaptations following a rapid change in muscle glycogen availability, 14 subjects had their muscle glycogen content increased in one leg (IG) and decreased in the other (DG). In group A (n=7), subjects exercised on a bicycle ergometer at 70% maximal oxygen uptake for 20 min using the DG leg. Without resting these same subjects exercised another 20 min using the IG leg. Subjects in group B (n=7) followed the same single-leg exercise protocol but in the reverse order. In order to get some information on the time sequence of these possible adaptations, blood samples were collected at rest and at the beginning and the end of each exercise period (min 5, 20, 25, and 40). Results indicated that 5 min after the switch from the DG leg to the IG leg. transient increases in plasma free fatty acids (1.20 to 1.39 meq·l−1) and serum insulin (10.1 to 12 mU·l−1) concentrations occured. Between minute 25 and 40 of exercise, the DG to IG switch was accompanied by a decrease in free fatty acids and glycerol concentrations as well as an increase in lactate levels. An opposite response was observed in the IG to DG condition during the same time span. Plasma norepinephrine, epinephrine, glucagon, and serum cortisol concentrations were not significantly affected by the leg change. These results suggest a rapid preferential use of muscle glycogen when available and a time lag in the response of the extramuscular substrate mobilization factors.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00964691
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  • 15
    Electronic Resource
    Electronic Resource
    Enantiomer separation of some aromatic carboxylic acids by HPLC on a chemically bonded β-cyclodextrin stationary phase (1984)
    Weinheim : Wiley-Blackwell
    Journal of High Resolution Chromatography 7 (1984), S. 147-148 
    Details
    ISSN: 0935-6304
    Keywords: Liquid chromatography ; HPLC ; Racemate separation ; β-Cyclodextrin stationary phase ; Cyclohexylphenylglycolic acid ; Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jhrc.1240070311
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  • 16
    Electronic Resource
    Electronic Resource
    Multi-mode liquid chromatography of polystyrenes on phenyl-bonded phase (1984)
    Weinheim : Wiley-Blackwell
    Journal of High Resolution Chromatography 7 (1984), S. 158-159 
    Details
    ISSN: 0935-6304
    Keywords: Multi-mode liquid chromatography ; Adsorption chromatography ; Size exclusion chromatography ; Phenyl-bonded phase ; Styrene oligomers ; Polystyrene polymers ; Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jhrc.1240070317
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  • 17
    Electronic Resource
    Electronic Resource
    Masthead (1984)
    Weinheim : Wiley-Blackwell
    Journal of High Resolution Chromatography 7 (1984) 
    Details
    ISSN: 0935-6304
    Keywords: Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jhrc.1240070401
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  • 18
    Electronic Resource
    Electronic Resource
    HPLC on 3,5-dinitrobenzamidopropyl silica gel (1984)
    Weinheim : Wiley-Blackwell
    Journal of High Resolution Chromatography 7 (1984), S. 160-161 
    Details
    ISSN: 0935-6304
    Keywords: Liquid chromatography HPLC ; Bonded phases ; 3,5-Dinitrobenzamidopropyl silica gel ; Charge transfer interaction ; Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 1 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jhrc.1240070318
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  • 19
    Electronic Resource
    Electronic Resource
    Open tubular column gas chromatography: Theory and practice. Milton L. Lee, Frank J. Yang Keith D. Bartle John Wiley & Sons, New York, 1984, X + 445 pp., US $ 48.00. (1984)
    Weinheim : Wiley-Blackwell
    Journal of High Resolution Chromatography 7 (1984), S. 327-327 
    Details
    ISSN: 0935-6304
    Keywords: Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jhrc.1240070607
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  • 20
    Electronic Resource
    Electronic Resource
    Deactivation of fused silica capillary columns with polymethylhydrosiloxanes (1984)
    Weinheim : Wiley-Blackwell
    Journal of High Resolution Chromatography 7 (1984), S. 329-332 
    Details
    ISSN: 0935-6304
    Keywords: Gas chromatography ; Fused silica capillary columns ; Deactivation ; Polymethylhydrosiloxanes ; Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jhrc.1240070608
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  • 21
    Electronic Resource
    Electronic Resource
    Multidetection of pesticides in capillary gas chromatography (1984)
    Weinheim : Wiley-Blackwell
    Journal of High Resolution Chromatography 7 (1984), S. 338-339 
    Details
    ISSN: 0935-6304
    Keywords: Gas chromatography ; Pesticides ; Multidetection ; ECD-NPSD-SSD ; Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jhrc.1240070613
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  • 22
    Electronic Resource
    Electronic Resource
    Clean-up of polynuclear aromatic hydrocarbons and 3-ring azaarenes and their GC-analysis on whisker-walled open tubular columns (1984)
    Weinheim : Wiley-Blackwell
    Journal of High Resolution Chromatography 7 (1984), S. 301-305 
    Details
    ISSN: 0935-6304
    Keywords: Capillary gas chromatography ; Whisker-walled open tubular columns ; PNA-hydrocarbons ; XAD-2 ; Azaarenes ; Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: A modified clean-up of polynuclear aromatic (PNA) hydrocarbons on XAD-2 is described. n-Alkanes (C16—C28) are separated quantitatively from the PNA hydrocarbons and are eluted in one fraction. The distribution of 17 PNA hydrocarbons and four of their alkyl derivatives, two S-heterocyclic compounds and two azaarenes between the different fractions is reported. Azaarenes containing three rings are separated from PNA hydrocarbons and S-heterocyclic compounds. Whisker-walled open tubular columns coated with OV-215 and OV-25 were used in the separation of isomeric azaarenes and in PNA hydrocarbon profile analysis, respectively. The preparation of such columns is described in detail. Rinsing of capillary columns with cold, concentrated HCI after whisker growth removes much larger amounts of boron and sodium than subsequent leaching with HCI at 180°C. Whisker-walled open tubular columns are successfully applied to the characterization of isomeric benzofluoranthenes and other PNA hydrocarbons isolated from air particulate matter.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jhrc.1240070603
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  • 23
    Electronic Resource
    Electronic Resource
    Length of the flooded zone in the column inlet and evaluation of different retention gaps for capillary gas chromatography (1984)
    Weinheim : Wiley-Blackwell
    Journal of High Resolution Chromatography 7 (1984), S. 319-326 
    Details
    ISSN: 0935-6304
    Keywords: Capillary GC ; Band broadening in space ; Flooded column inlet ; Retention gap ; Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: In on-column or in splitless injection with recondensation of the solvent, the length of the flooded zone in the column inlet depends primarily on the wettability of the internal wall of the inlet. For columns with a coated inlet this explains why peak distortion due to band broadening in space by a certain sample volume is pronounced in one case and hardly observable in another. Glass or fused silica capillaries silylated with diphenyltetramethyldisilazane were found to give optimal retention gaps. They combine thorough and thermostable deactivation with good wettability and low retention power. On the other hand it is very easy to deactivate fused silica capillaries with Carbowax. The resulting retention gaps are suitable for a wide range of applications and are particularly attractive for the analysis of dirty samples which require frequent replacement of the inlet.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jhrc.1240070606
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  • 24
    Electronic Resource
    Electronic Resource
    On the stability of polarity mixtures used in CGC (1984)
    Weinheim : Wiley-Blackwell
    Journal of High Resolution Chromatography 7 (1984), S. 332-333 
    Details
    ISSN: 0935-6304
    Keywords: Gas chromatography ; Capillary columns ; Polarity mixtures ; Reaction products ; Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jhrc.1240070609
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  • 25
    Electronic Resource
    Electronic Resource
    Multidimensional column ion chromatographic determination of tetrafluoroborate and phosphate (1984)
    Weinheim : Wiley-Blackwell
    Journal of High Resolution Chromatography 7 (1984), S. 336-337 
    Details
    ISSN: 0935-6304
    Keywords: Ion chromatography ; Multidimensional column ; Borophosphosilicate glass (BPSG) film ; VLS ; Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jhrc.1240070612
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  • 26
    Electronic Resource
    Electronic Resource
    Modified equation for the calculation of theoretical plate number and sorbent selection on the basis of retention indices (1984)
    Weinheim : Wiley-Blackwell
    Journal of High Resolution Chromatography 7 (1984), S. 342-343 
    Details
    ISSN: 0935-6304
    Keywords: Gas-liquid chromatography ; Logarithmic retention index ; Equation for the calculation of column efficiency ; Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 1 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jhrc.1240070615
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  • 27
    Electronic Resource
    Electronic Resource
    Masthead (1984)
    Weinheim : Wiley-Blackwell
    Journal of High Resolution Chromatography 7 (1984) 
    Details
    ISSN: 0935-6304
    Keywords: Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jhrc.1240070701
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  • 28
    Electronic Resource
    Electronic Resource
    Chromatography calendar (1984)
    Weinheim : Wiley-Blackwell
    Journal of High Resolution Chromatography 7 (1984), S. 433-435 
    Details
    ISSN: 0935-6304
    Keywords: Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jhrc.1240070717
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  • 29
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    Electronic Resource
    Direct gas chromatographic analysis of halogenated hydrocarbons at the part-per-trillion level (1984)
    Weinheim : Wiley-Blackwell
    Journal of High Resolution Chromatography 7 (1984), S. 370-374 
    Details
    ISSN: 0935-6304
    Keywords: Gas chromatography ; Trace analysis ; On-column injection ; Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Large sample volume on-column injection (up to 250 μL) of n-pentane solutions of halogenated hydrocarbons has been employed for the direct measurement of both low-boiling and high-boiling compounds in what is essentially a single run. Two-bonded phase, fused-silica capillary columns are joined in series, through which the low-boiling compounds are first chromatographed and detected with an electron capture detector. High-boiling compounds are then trapped in a section joining the two columns, and subsequently chromatographed in the second column, using the same detector. This procedure permits analysis at the ppt level.
    Additional Material: 7 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jhrc.1240070706
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  • 30
    Electronic Resource
    Electronic Resource
    Multidimensional capillary gas chromatography-enantiomeric separations of selected cuts using a chiral second column (1984)
    Weinheim : Wiley-Blackwell
    Journal of High Resolution Chromatography 7 (1984), S. 404-410 
    Details
    ISSN: 0935-6304
    Keywords: Gas chromatography ; Multidimensional capillary columns ; Enantiomeric separations ; Intermediate trapping ; Mixed polarities ; Terpene alcohols ; Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jhrc.1240070711
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  • 31
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    Determination of nitrated-polyaromatic hydrocarbons (nitro-PAHs) in environmental samples by high resolution chromatographic techniques (1984)
    Weinheim : Wiley-Blackwell
    Journal of High Resolution Chromatography 7 (1984), S. 389-397 
    Details
    ISSN: 0935-6304
    Keywords: Low and high resolution liquid chromatography ; Gas chromatography ; Capillary columns ; Alkali flame detection ; Chemical ionization mass spectrometry ; Nitro-PAHs ; Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: An analytical procedure is described for the fractionation of organic compounds present in environmental samples and the determination of nitro polyaromatic hydrocarbons (nitro-PAHs). Both low and high resolution liquid chromatography are employed for the prefractionation of the soluble organic fraction (SOF) extracted from particulate matter or gaseous pollutants collected on adsorption traps. High resolution gas chromatography is used to analyze four fractions containing alkanes, PAHs, nitro-PAHs, and other polar PAHs. Nitrogen-containing species are separated by GC and detected specifically using an alkali flame (NPD) detector. Flame ionization (FID) detection, GC-MS of positive ions, and negative ion chemical ionization MS of the whole fraction is used for the identification and quantitation of the various components. The composition of SOF extracted from particulate matter emitted from diesel exhausts is elucidated and a large number of nitro-PAHs identified by the combination of the various techniques.
    Additional Material: 7 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jhrc.1240070709
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  • 32
    Electronic Resource
    Electronic Resource
    Masthead (1984)
    Weinheim : Wiley-Blackwell
    Journal of High Resolution Chromatography 7 (1984) 
    Details
    ISSN: 0935-6304
    Keywords: Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jhrc.1240070901
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  • 33
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    Electronic Resource
    Characterization of OV-1/FFAP-mixture coated glass capillary columns used for the separation of free fatty acids (1984)
    Weinheim : Wiley-Blackwell
    Journal of High Resolution Chromatography 7 (1984), S. 509-514 
    Details
    ISSN: 0935-6304
    Keywords: Gas chromatography, GC ; OV-1/FFAP mixed phase, high-temperature ; silylated glass capillary ; Polar phase-coated HTS capillary ; Golay curves of mixed phases ; Thermal and long-term stability of OV-1/FFAP ; Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: As an alternative to acid pretreated UCON and FFAP capillaries for the analysis of wide-boiling free fatty acid mixtures, OV-1 : FFAP phase mixtures were used on high-temperature silylated inert glass capillary columns. The HETP-carrier gas velocity curves, peak asymmetry factors, coating efficiency, gas phase and stationary phase contributions to the mass transfer resistance were determined for various OV-1 : FFAP ratios. Mixed-phase capillaries showed optimum performance at a 2 : 1 OV-1 : FFAP ratio. The thermal and long-term stability of OV-1-stabilized FFAP columns surpassed those of the UCON and pure FFAP reference column used.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jhrc.1240070903
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  • 34
    Electronic Resource
    Electronic Resource
    The length of the zone flooded by the injection of large volumes onto retention gaps in capillary GC (1984)
    Weinheim : Wiley-Blackwell
    Journal of High Resolution Chromatography 7 (1984), S. 531-532 
    Details
    ISSN: 0935-6304
    Keywords: Gas chromatography, GC ; Capillary columns ; Retention gaps ; Large sample volumes ; Flooded zone ; Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jhrc.1240070908
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  • 35
    Electronic Resource
    Electronic Resource
    High speed zone electrophoresis in open-tubular fused silica capillaries (1984)
    Weinheim : Wiley-Blackwell
    Journal of High Resolution Chromatography 7 (1984), S. 529-531 
    Details
    ISSN: 0935-6304
    Keywords: Capillary electrophoresis ; High resolution separation ; High speed analysis ; Dansyl amino acids ; Fluorescamine labeled peptides ; Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jhrc.1240070907
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  • 36
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    Electronic Resource
    Advantages and limits of the quantitative determination of α-ferrocenyl carbinols with capillary GC (1984)
    Weinheim : Wiley-Blackwell
    Journal of High Resolution Chromatography 7 (1984), S. 536-537 
    Details
    ISSN: 0935-6304
    Keywords: Gas chromatography ; Capillary column ; On-Column injection ; Vaporizing injection ; Decomposition ; α-Ferrocenyl carbinols ; Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jhrc.1240070910
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  • 37
    Electronic Resource
    Electronic Resource
    Non-suppressed ion chromatography of carbonate and nitrite on steel surfaces (1984)
    Weinheim : Wiley-Blackwell
    Journal of High Resolution Chromatography 7 (1984), S. 580-581 
    Details
    ISSN: 0935-6304
    Keywords: Ion chromatography, IC ; Steel surface analysis ; Carbonate, chloride, nitrite ; Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jhrc.1240071008
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  • 38
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    Electronic Resource
    Immobilization of stationary phase films by gamma radiation. Part 1. Nonpolar phases, regular and thick-film capillaries (1984)
    Weinheim : Wiley-Blackwell
    Journal of High Resolution Chromatography 7 (1984), S. 620-624 
    Details
    ISSN: 0935-6304
    Keywords: Gas chromatography, GC ; Glass capillary columns ; Immobilization ; Gamma radiation ; Very thick films ; Nonpolar stationary phases ; OV-1, OV-101, SE-54 ; Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Borosilicate glass capillaries, silylated and coated with OV-1 or SE-54, were irradiated by a 60Co gamma source. The effect of radiation on chromatographic performance was determined for a series of dosages and was evaluated before and after rinsing with solvent. Results for both regular and thick films were obtained.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jhrc.1240071104
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  • 39
    Electronic Resource
    Electronic Resource
    Trace Enrichment of marine algal pigments for use with HPLC-diode array spectroscopy (1984)
    Weinheim : Wiley-Blackwell
    Journal of High Resolution Chromatography 7 (1984), S. 632-635 
    Details
    ISSN: 0935-6304
    Keywords: Liquid chromatography, HPLC ; Diode array spectroscopy ; Trace enrichment ; Algal pigments ; Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jhrc.1240071107
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  • 40
    Electronic Resource
    Electronic Resource
    Rapid determination of major congeners in distilled spirits by direct analysis on bonded capillary columns (1984)
    Weinheim : Wiley-Blackwell
    Journal of High Resolution Chromatography 7 (1984), S. 641-643 
    Details
    ISSN: 0935-6304
    Keywords: Gas chromatography, GC ; Fused silica capillary columns ; Bonded stationary phase ; Distilled beverages ; Direct analysis ; Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jhrc.1240071111
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  • 41
    Electronic Resource
    Electronic Resource
    Chromatography calendar (1984)
    Weinheim : Wiley-Blackwell
    Journal of High Resolution Chromatography 7 (1984), S. 649-652 
    Details
    ISSN: 0935-6304
    Keywords: Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jhrc.1240071115
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  • 42
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    Separation of isomers of nitro-polycyclic aromatic hydrocarbons (1984)
    Weinheim : Wiley-Blackwell
    Journal of High Resolution Chromatography 7 (1984), S. 671-678 
    Details
    ISSN: 0935-6304
    Keywords: Liquid chromatography, HPLC ; Isomer separation ; Mutagenic compounds ; Nitropolycyclic aromatic hydrocarbons ; Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Since positional isomers of several nitro-polycyclic aromatic hydrocarbons (nitro-PAH) contain widely different mutagenic properties, methods for separating the isomers were investigated. High performance liquid chromatography with dichloromethane in hexane on silica gave the best resolution for the majority of the compounds. A few groups of isomers were better resolved with other modifiers or with reversed phases. Of the reversed phase systems, methanol-water gave better resolution than acetonitrile-water. With dichloromethane/hexane on silica, the retention was found to depend on the presence of a bay nitro group (first), the number of H atoms peri to the nitro group (second), and the length/breadth ratio of the molecule (third).Front electron density calculations were combined with the structure-retention relations in making tentative structure assignments of minor isomers of nitro-PAH.
    Additional Material: 12 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jhrc.1240071203
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  • 43
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    Immobilization of stationary phase films by gamma radiation. Part 2 medium-polarity OV-1701-Vi phase (1984)
    Weinheim : Wiley-Blackwell
    Journal of High Resolution Chromatography 7 (1984), S. 700-701 
    Details
    ISSN: 0935-6304
    Keywords: Gas chromatography ; Glass capillary columns ; Immobilization ; 60Co gamma radiation ; Medium-polarity phase ; OV-1701-Vi ; Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jhrc.1240071207
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  • 44
    Electronic Resource
    Electronic Resource
    Changes in peak width and concentration at the inlet and outlet of a chromatographic column (1984)
    Weinheim : Wiley-Blackwell
    Journal of High Resolution Chromatography 7 (1984), S. 615-619 
    Details
    ISSN: 0935-6304
    Keywords: Theory ; Sorption ; Plate model ; Band widths ; Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: The original plate model of chromatography is extended to the sorption process occurring at the column inlet and the desorption process at the column exit. At the column inlet it is shown that sufficiently wide feed bands undergo no change in concentration but a fall in band width, i.e., the volume of mobile phase occupied by the solute band is reduced. The reduction factor is (1 + k) where k is the mass distribution ratio (capacity factor). Narrower bands suffer partial reduction in both band width and concentration. On desorption at the outlet, however, the change is always in band width and not concentration. A perfect detector registers the true concentration-time profile of the band in the column if the solute mass fraction in the stationary phase is below 10-3 at the column outlet. The risks of stripping the stationary phase at high solute concentrations in analytical and preparative or production gas chromatography are compared.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jhrc.1240071103
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  • 45
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    Electronic Resource
    Resolution of gossypol: Analytical and preparative HPLC (1984)
    Weinheim : Wiley-Blackwell
    Journal of High Resolution Chromatography 7 (1984), S. 629-631 
    Details
    ISSN: 0935-6304
    Keywords: Preparative liquid chromatography, HPLC ; Chiral HPLC columns ; (-)-Gossypol ; Resolution of enatiomers ; Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jhrc.1240071106
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  • 46
    Electronic Resource
    Electronic Resource
    Effluent stream splitting to two different detectors (1984)
    Weinheim : Wiley-Blackwell
    Journal of High Resolution Chromatography 7 (1984), S. 639-640 
    Details
    ISSN: 0935-6304
    Keywords: Gas chromatography, GC ; Flame ionization detector, FID ; Electron capture detector, ECD ; Effluent splitting ; Pesticides ; Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jhrc.1240071110
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  • 47
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    Errata (1984)
    Weinheim : Wiley-Blackwell
    Journal of High Resolution Chromatography 7 (1984), S. 647-647 
    Details
    ISSN: 0935-6304
    Keywords: Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jhrc.1240071114
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  • 48
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    HPTLC separation of PGF2α, PGE1, PGE2, PGA1 prostaglandins and quantitative determination in situ by induced fluorescence (1984)
    Weinheim : Wiley-Blackwell
    Journal of High Resolution Chromatography 7 (1984), S. 593-595 
    Details
    ISSN: 0935-6304
    Keywords: High performance thin layer chromatography, HPTLC ; Fluorescence ; Prostaglandins ; Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jhrc.1240071013
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  • 49
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    Product news (1984)
    Weinheim : Wiley-Blackwell
    Journal of High Resolution Chromatography 7 (1984), S. 601-604 
    Details
    ISSN: 0935-6304
    Keywords: Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jhrc.1240071017
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  • 50
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    Reaction gas chromatography/mass spectrometry. Part IXFor Part VIII, see [1].: Post-column hydrodesulfurization in capillary GC/MS as an aid in structure elucidation of cyclic sulfides within mixtures (1984)
    Weinheim : Wiley-Blackwell
    Journal of High Resolution Chromatography 7 (1984), S. 625-628 
    Details
    ISSN: 0935-6304
    Keywords: Reaction gas chromatography/mass spectrometry, GC/MS ; Capillary columns ; Post-column hydrodesulfurization ; Cyclic sulfides ; Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: This article describes a method that assists in structure determination of cyclic sulfides mixtures by GC/MS. The method involves the use of a gas-phase hydrodesulfurization microreactor (AP-56 catalyst, reaction temperture 300-315°C, hydrogen as a carrier and reagent gas) located between the capillary column (OV-17) and the mass spectrometer. The presence of a microreactor in such a position does not essentially affect the chromatographic separation achieved by using the capillary column. Combined analysis of the mass spectra registered for the original sulfides and the hydrodesulfurization products permits the structure determination of each effluent to be made more reliably. This is illustrated by the investigation of a reaction mixture containing the structural and geometric isomers of methyl-substituted thiabicyclononanes.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jhrc.1240071105
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    Separation of 3- to 6-ring polycyclic aromatic hydrocarbons by capillary gas chromatography with a liquid crystal as stationary phase (1984)
    Weinheim : Wiley-Blackwell
    Journal of High Resolution Chromatography 7 (1984), S. 637-638 
    Details
    ISSN: 0935-6304
    Keywords: Gas chromatography, GC ; Glass capillary columns ; Liquid crystal ; Polycyclic aromatic hydrocarbons (PAH) ; N,N′-Bis(p-butoxybenzylidene)-α,α′-bi-p-toluidine (BBBT) ; Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jhrc.1240071109
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    Masthead (1984)
    Weinheim : Wiley-Blackwell
    Journal of High Resolution Chromatography 7 (1984) 
    Details
    ISSN: 0935-6304
    Keywords: Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jhrc.1240071201
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    Rapid and reproducible injection onto microbore columns (1984)
    Weinheim : Wiley-Blackwell
    Journal of High Resolution Chromatography 7 (1984), S. 703-706 
    Details
    ISSN: 0935-6304
    Keywords: Gas chromatography, GC ; Fused silica microbore columns ; Automated injection ; Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jhrc.1240071209
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    Solute focusing using the solvent effect  -  A mass spectrometric investigation of packed bed inlets (1984)
    Weinheim : Wiley-Blackwell
    Journal of High Resolution Chromatography 7 (1984), S. 142-143 
    Details
    ISSN: 0935-6304
    Keywords: Gas chromatography ; Solute focussing ; Solvent effect ; Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jhrc.1240070309
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    Determination of silanol groups on surface of sorbents for HPLC (1984)
    Weinheim : Wiley-Blackwell
    Journal of High Resolution Chromatography 7 (1984), S. 153-154 
    Details
    ISSN: 0935-6304
    Keywords: Liquid chromatography, HPLC ; Silanized silica for HPLC ; Surface silanol groups ; Dimethylzinc tetrahydrofuranate ; Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jhrc.1240070314
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    High performance liquid chromatography profiling of prostaglandins (1984)
    Weinheim : Wiley-Blackwell
    Journal of High Resolution Chromatography 7 (1984), S. 156-157 
    Details
    ISSN: 0935-6304
    Keywords: Liquid chromatography, HPLC ; HPLC profiling ; Prostaglandins ; High speed HPLC ; Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jhrc.1240070316
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  • 57
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    Application of a multichannel photodiode array UV-visible detector to the analysis of components of a medicine by micro high-performance liquid chromatography (1984)
    Weinheim : Wiley-Blackwell
    Journal of High Resolution Chromatography 7 (1984), S. 151-152 
    Details
    ISSN: 0935-6304
    Keywords: Micro HPLC ; Multichannel photodiode array detector ; Components in a medicine ; Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jhrc.1240070313
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    High performance thin layer chromatography - densitometric method for content uniformity test of lanatoside C tablets (1984)
    Weinheim : Wiley-Blackwell
    Journal of High Resolution Chromatography 7 (1984), S. 161-164 
    Details
    ISSN: 0935-6304
    Keywords: High-performance-thin layer chromatography, HPTLC ; Zirconium oxychloride ; Backside fluorodensitometric detection on TLC plate ; Content uniformity test for lanatoside C tablets ; Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jhrc.1240070319
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    Developments in pyrolysis capillary GC (1984)
    Weinheim : Wiley-Blackwell
    Journal of High Resolution Chromatography 7 (1984), S. 172-184 
    Details
    ISSN: 0935-6304
    Keywords: Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 11 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jhrc.1240070402
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    The use of coupled columns for the capillary gas chromatographic separation of water pollutants (1984)
    Weinheim : Wiley-Blackwell
    Journal of High Resolution Chromatography 7 (1984), S. 215-217 
    Details
    ISSN: 0935-6304
    Keywords: Gas chromatography ; Capillary, fused silica ; Coupled columns ; Halogenated organic pollutants ; Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jhrc.1240070410
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    Tswett medals 1984 (1984)
    Weinheim : Wiley-Blackwell
    Journal of High Resolution Chromatography 7 (1984), S. 225-226 
    Details
    ISSN: 0935-6304
    Keywords: Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jhrc.1240070414
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    Separation of distearoylphosphatidylcholine, dipalmitoylphosphatidylcholine, and dioleylphosphatidylcholine by thin-layer chromatography using new modified plates (1984)
    Weinheim : Wiley-Blackwell
    Journal of High Resolution Chromatography 7 (1984), S. 211-212 
    Details
    ISSN: 0935-6304
    Keywords: Thin layer chromatography, TLC ; Alkylchlorosilanes ; Phosphatidylcholines ; Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 1 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jhrc.1240070408
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    High-speed micro-HPLC for analysis of polycaclic aromatic hydrocarbons in environmental samples (1984)
    Weinheim : Wiley-Blackwell
    Journal of High Resolution Chromatography 7 (1984), S. 218-219 
    Details
    ISSN: 0935-6304
    Keywords: High-speed micro-HPLC ; Rapid Identification ; Polycyclic aromatic hydrocarbons ; Environmental sample ; Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jhrc.1240070411
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    Chromatographic mechanisms of coated porous polymers: Chromosorb 102 coated with squalane (1984)
    Weinheim : Wiley-Blackwell
    Journal of High Resolution Chromatography 7 (1984), S. 222-224 
    Details
    ISSN: 0935-6304
    Keywords: Gas chromatography ; Interface ; Partition ; Adsorption ; Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jhrc.1240070413
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    Contemporary capillary columns for gas chromatography (1984)
    Weinheim : Wiley-Blackwell
    Journal of High Resolution Chromatography 7 (1984), S. 232-244 
    Details
    ISSN: 0935-6304
    Keywords: Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 8 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jhrc.1240070502
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    The role of column technology in capillary gas chromatography (1984)
    Weinheim : Wiley-Blackwell
    Journal of High Resolution Chromatography 7 (1984), S. 252-257 
    Details
    ISSN: 0935-6304
    Keywords: Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: After having witnessed, over a period of more than 20 years, the extremely difficult early development of capillary gas chromatography, the growth of scientific understandign, and finally its sudden blossoming into a commonly accepted technique, the author is confronted with a dichotomy. On the one hand, there are the dramatic advances in the fields of column preparation, and of sampling techniques. Implementation of these advances should logically result in correspondingly drastic progress in the average quality of application work in drastic progress in the average quality of application work in capillary gas chromatography. On the other hand, however, such progress is lacking. The greater the practical potential, the smaller the fractionm of that potential which is practically exploited. The reason is that most users interpret te recent advances as exempting them from their obligation to know and think about the many details of practical work, and to attempt standardized work with standard columns and techniques. Standardization of routine work is beneficial, provided the standards are optimized-a condition which all too often remains unfulfilled. Research work, performed in a realm of ever new and unknown conditions, is of poor quality when done by standardized means. Since the most critical part of optimization is column selection, the capillary column must be mastered as a familiar tool in the hands of the investigator. This is hardly possible in the absence of any direct contact with column technology.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jhrc.1240070504
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    Determination of flurazepam and its hydroxyethyl and dealkyl metabolites by some packed and capillary ECD-GLC methods: Application to pharmacokinetic studies (1984)
    Weinheim : Wiley-Blackwell
    Journal of High Resolution Chromatography 7 (1984), S. 258-264 
    Details
    ISSN: 0935-6304
    Keywords: Gas-liquid chromatography ; Packed and capillary columns ; Plasma anaysis ; Pharmacokinetic studies ; Benzodiazepines ; Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: A sensitive gas-liquid chromatographic assay was developed for plasma determinations of flurazepam (F), N1-desalkylflurazepam (DF), and N1-hydroxyethylflurazepam (HF). The internal standards used were delorazepam for F and DF and 1 ã-hydroxymidazolam for HF. Following extraction and derivatization for HF, these compounds were analyzed by ECD-GLC, using either glass packed columns (poly A 103 for F and DF, OV 225 for HF) or CP-Sil 5 capillary columns for DF and HF. The detection limit of the packed-column assay was approximately 3ng/ml for HF and DF, and 5ng/ml for F; with capillary GLC analysis, the sensitivity limit for HF and DF was lower than 1 ng/ml. These methods were used for pharmacokinetic investigations after i. v. administration of these compunds.
    Additional Material: 4 Ill.
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    URL: http://dx.doi.org/10.1002/jhrc.1240070505
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    HPLC in packed microbore flexible silica capillaries. Part 2: Estimation and calculation of extra-column band broadening (1984)
    Weinheim : Wiley-Blackwell
    Journal of High Resolution Chromatography 7 (1984), S. 276-278 
    Details
    ISSN: 0935-6304
    Keywords: HPLC, Packed microbore columns ; Band broadening and flow rate ; Calculated van Deemter plot ; Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jhrc.1240070510
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    Activated carbon fiber as stationary phase in gas chromatography (1984)
    Weinheim : Wiley-Blackwell
    Journal of High Resolution Chromatography 7 (1984), S. 282-283 
    Details
    ISSN: 0935-6304
    Keywords: Gas chromatography ; Gas analysis ; Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jhrc.1240070513
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    Product news (1984)
    Weinheim : Wiley-Blackwell
    Journal of High Resolution Chromatography 7 (1984), S. 286-288 
    Details
    ISSN: 0935-6304
    Keywords: Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jhrc.1240070515
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    Citation of books on chromatography (1984)
    Weinheim : Wiley-Blackwell
    Journal of High Resolution Chromatography 7 (1984), S. 296-300 
    Details
    ISSN: 0935-6304
    Keywords: Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 9 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jhrc.1240070602
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    Large sample injection method (≥ 100 μL) for capillary GC using a commercial thermodesorption unit as injection device (1984)
    Weinheim : Wiley-Blackwell
    Journal of High Resolution Chromatography 7 (1984), S. 306-311 
    Details
    ISSN: 0935-6304
    Keywords: Gas chromatography ; Capillary columns ; Thermodesorption ; Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: A commercial thermodesorption and cold trap unit can be used as a large sample volume injection device in high resolution gas chromatography. Volumes of more than 100 μl can be injected. More than 97% of solvents, such as hexane, can be removed by a Tenax TA precolumn without any loss of compounds with volatilities comparable to naphthalene. Experimental conditions, recovery rates of polycyclic aromatic hydrocarbons, and the reproducibility of the method are described in detail. The method was successfully applied for the determination of PAH in air particulate matter extracts.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jhrc.1240070604
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    Supplementary comment on the paper “On the stability of polarity mixtures used in CGC” (1984)
    Weinheim : Wiley-Blackwell
    Journal of High Resolution Chromatography 7 (1984), S. 333-333 
    Details
    ISSN: 0935-6304
    Keywords: Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jhrc.1240070610
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    Stability of dibenzothiophene oxides under gas chromatographic conditions (1984)
    Weinheim : Wiley-Blackwell
    Journal of High Resolution Chromatography 7 (1984), S. 334-335 
    Details
    ISSN: 0935-6304
    Keywords: Gas chromatography ; Fused-Silica columns ; Thermal stability ; Dibenzothiophene oxides ; Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jhrc.1240070611
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    A miniature gradient elution system for liquid chromatography with packed capillary columns (1984)
    Weinheim : Wiley-Blackwell
    Journal of High Resolution Chromatography 7 (1984), S. 411-413 
    Details
    ISSN: 0935-6304
    Keywords: Packed capillary columns ; Miniaturized gradient elution ; Polynuclear aromatic hydrocarbons ; Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: A miniaturized continuous gradient elution system was designed for work with packed capillary columns. The retention reproducibility achieved is adequate for many practical applications.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jhrc.1240070712
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    Peak broadening in isothermal runs due to large retention gaps in capillary GC? (1984)
    Weinheim : Wiley-Blackwell
    Journal of High Resolution Chromatography 7 (1984), S. 461-465 
    Details
    ISSN: 0935-6304
    Keywords: Gas chromatography, GC ; Capillary columns ; Retention gaps ; Peak broadening ; Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: A simple formula is derived which allows estimation of the band broadening due to longitudinal diffusion in retention gaps for isothermal runs with the column held at the injection temperature. The broadening is strongly dependent on the linear gas velocity in the retention gap. If the internal diameters of the retention gap and the separation column are similar, the retention gap may have a length exceeding 100 m, even if the separation column is only 10 m long. A 0.5 mm I.D. retention gap attached to a 0.3 mm I.D. separation column (of interest for automatic on-column injection) may be several meters long. Retention gaps of 0.3 mm I.D. may be used for on-column injections into separation columns with I.D's. down to about 0.1 mm.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jhrc.1240070803
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    Device for injection of absorbent-trapped compounds on to a WCOT column (1984)
    Weinheim : Wiley-Blackwell
    Journal of High Resolution Chromatography 7 (1984), S. 477-479 
    Details
    ISSN: 0935-6304
    Keywords: Gas chromatography ; Glass capillary column ; Adsorbent ; Cold trapping ; Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jhrc.1240070806
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    Increased speed of steroid analysis by capillary GC and GC-MS; effects of sample pretreatment and sample introdution (1984)
    Weinheim : Wiley-Blackwell
    Journal of High Resolution Chromatography 7 (1984), S. 414-422 
    Details
    ISSN: 0935-6304
    Keywords: Gas chromatography ; Capillary columns ; Steroid analysis ; Sample pretreatment ; Sample introduction ; Separation speed ; Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Quantitative analysis of steroids and their metabolites in urine samples calls for increased speed of sample clean-up, of the derivatization procedure, and of separation. A fast procedure for sample pretreatment, which can be performed within 8 hours, is introduced and evaluated. It is shown that use of fast pretreatment in combination with narrow bore columns, which are compatible with existing instrumentation, can considerably increase, laboratory throughput. The effect of different sample introduction techniques (e.g. splitless, on-column, and moving needle) on column efficiency and resolution is demonstrated and discussed.
    Additional Material: 7 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jhrc.1240070713
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    Liquid chromatography in environmental analysis. James F. Lawrence, editor. Humana Press, XVI + 374 pp., U.S. $55.00 (1984)
    Weinheim : Wiley-Blackwell
    Journal of High Resolution Chromatography 7 (1984), S. 435-435 
    Details
    ISSN: 0935-6304
    Keywords: Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jhrc.1240070718
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    HPLC of nucleotides. II. General methods and their development for analysis and preparative separation. An approach to selectivity controlThis review was presented at the Budapest Chromatography Conference, June 1983, as a report and two posters. Part of it was included in [1]. Abbreviations: r - denotes ribonucleotides; d - (deoxy) is omitted; p - denotes terminal phosphate groups; internucleotide phosphate groups also are omitted. (1984)
    Weinheim : Wiley-Blackwell
    Journal of High Resolution Chromatography 7 (1984), S. 442-460 
    Details
    ISSN: 0935-6304
    Keywords: Liquid chromatography, HPLC ; General methods of nucleotide HPLC ; Molecular and ionic basis of separation ; Two-dimensional separation ; Stationary phase; selectivity to nucleotide size and composition, selectivity control ; Mobile phase (solvent, salt, pH), influence on retention and selectivity ; Guard-column functions ; Column loadability and packing, consolidation of bed particles ; Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: In order to develop efficient separation methods for nucleotides according to their size and heterocyclic composition, the application of ion-exchange, reverse-phase, and normal-phase adsorption HPLC has been studied. The comparative investigation of retention power and selectivity of various packings (non-polar bonded-phase and amino silicas) in relation to nucleotide length and composition yields data which enable suitable packings to be selected and a method of preparing the new packing for a particular separation problem to be formulated. Thus a new anion exchanger with high selectivity and dynamic mass transfer has been prepared for fractionation of large oligonucleotides. The effect of the eluent pH and composition (organic modifier, salt) on retention, selectivity, and resolution in ion-exchange and reverse-phase HPLC has been studied. The optimum separation conditions comprise elution with oppositely directed gradients of the salt and the modifier, use of a precolumn packing that provides the best protection for the main column without loss of its efficiency, and the optimum gradient program for the desired retention of the component of interest. The relation between loading and sample concentration has been studied and the system for gradient elution improved. Our work shows that two-dimensional separation is the most reliable and informative method for preparation of homogeneous oligonucleotides. The hydrophobic-pair ion-exchange mechanism is proposed for ion-pair chromatography. Protected and partially deblocked oligonucleotides, chemically synthesized for genetic engineering studies, have been separated with high selectivity by adsorption (normal-phase) HPLC which is efficient for gradient elution with isohydric eluents. The analysis of a monomeric composition of nano-(pico-) molar amounts of oligonucleotides has been developed; the procedure involves microcolumn digestion of the oligonucleotides with immobilized enzymes followed by microcolumn separation of the nucleoside-mononucleotide mixture. Also, a new slurry method for packing stable HPLC columns with a tightly consolidated, nonshrinkable bed of particles has been developed.
    Additional Material: 31 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jhrc.1240070802
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  • 81
    Electronic Resource
    Electronic Resource
    Filter extraction in closed loop stripping analysis (CLSA) (1984)
    Weinheim : Wiley-Blackwell
    Journal of High Resolution Chromatography 7 (1984), S. 492-494 
    Details
    ISSN: 0935-6304
    Keywords: Gas chromatography ; Capillary, glass ; Closed loop stripping analysis ; Filter extraction ; Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jhrc.1240070811
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  • 82
    Electronic Resource
    Electronic Resource
    Gas chromatographic determination of residual ethylene oxide in gas-sterilized, medical-grade plastics (1984)
    Weinheim : Wiley-Blackwell
    Journal of High Resolution Chromatography 7 (1984), S. 587-589 
    Details
    ISSN: 0935-6304
    Keywords: Gas chromatography, GC ; Packed glass columns ; Solvent extraction ; Plastics ; Ethylene oxide ; Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jhrc.1240071011
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  • 83
    Electronic Resource
    Electronic Resource
    Comment on the paper “large sample injection method (≥ 100 μL) for capillary GC using a commercial thermodesorption unit as injection device” (1984)
    Weinheim : Wiley-Blackwell
    Journal of High Resolution Chromatography 7 (1984), S. 597-598 
    Details
    ISSN: 0935-6304
    Keywords: Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jhrc.1240071015
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  • 84
    Electronic Resource
    Electronic Resource
    Separation of arachidonic acid metabolites by thin-layer chromatography using new silicone-bonded plates (1984)
    Weinheim : Wiley-Blackwell
    Journal of High Resolution Chromatography 7 (1984), S. 538-539 
    Details
    ISSN: 0935-6304
    Keywords: Thin-layer chromatography, TLC ; Alkylchlorosilanes ; Prostaglandins ; Hydroxyelcosatetraenoic acids ; Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jhrc.1240070911
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  • 85
    Electronic Resource
    Electronic Resource
    Product news (1984)
    Weinheim : Wiley-Blackwell
    Journal of High Resolution Chromatography 7 (1984), S. 549-552 
    Details
    ISSN: 0935-6304
    Keywords: Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jhrc.1240070915
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  • 86
    Electronic Resource
    Electronic Resource
    Determination of tetraiodothyronine in serum by HPLC and electrochemical detection (1984)
    Weinheim : Wiley-Blackwell
    Journal of High Resolution Chromatography 7 (1984), S. 566-569 
    Details
    ISSN: 0935-6304
    Keywords: Liquid chromatography, HPLC ; Electrochemical detection ; Serum ; Tetraiodothyronine ; Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Tetraiodo-L-thyronine (T4) in human serum was determined by HPLC using a nonphysiological internal standard. For sample preparation, a cation exchange resin, RP-chromatography on C-18 or phenylphase, and electrochemical detection (Metrohm 656 or BAS-LC 4 A) were employed. The mobile phase (0.8 ml/min) was 10 mM H3PO4/CH3OH (40/60 v/v) or 10 mM H3PO4/CH3CN (70/30 v/v, 1.5 ml/min), the voltage applied 800 mV. The coefficient of variation (day to day) was 6.8% (N = 40); concentrations of T4 found were 11 to 20% lower than those obtained by two different commercially available immunoassays.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jhrc.1240071004
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  • 87
    Electronic Resource
    Electronic Resource
    Flexible capillary effluent splitter of the “all-glass” type (1984)
    Weinheim : Wiley-Blackwell
    Journal of High Resolution Chromatography 7 (1984), S. 578-579 
    Details
    ISSN: 0935-6304
    Keywords: Gas chromatography, GC ; Capillary columns ; Effluent splitter, all glass type ; Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jhrc.1240071007
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  • 88
    Electronic Resource
    Electronic Resource
    Pressure and temperature dependent chromatographic behavior of n-pentane (1984)
    Weinheim : Wiley-Blackwell
    Journal of High Resolution Chromatography 7 (1984), S. 590-592 
    Details
    ISSN: 0935-6304
    Keywords: Pressurized gas ; Supercritical fluid ; Elution and resolution behavior ; n-Pentane ; Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jhrc.1240071012
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  • 89
    Electronic Resource
    Electronic Resource
    Andrey Vladimirovich Kiselev (1908-1984) (1984)
    Weinheim : Wiley-Blackwell
    Journal of High Resolution Chromatography 7 (1984), S. 599-599 
    Details
    ISSN: 0935-6304
    Keywords: Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jhrc.1240071016
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  • 90
    Electronic Resource
    Electronic Resource
    Pesticide residue analysis by open tubular column gas chromatography: Trials, tribulations, and trends (1984)
    Weinheim : Wiley-Blackwell
    Journal of High Resolution Chromatography 7 (1984), S. 660-670 
    Details
    ISSN: 0935-6304
    Keywords: Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jhrc.1240071202
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  • 91
    Electronic Resource
    Electronic Resource
    On-column injection technique for use with 100 μm I.D. capillary columns (1984)
    Weinheim : Wiley-Blackwell
    Journal of High Resolution Chromatography 7 (1984), S. 697-699 
    Details
    ISSN: 0935-6304
    Keywords: Gas chromatography, GC ; Capillary columns, 100 μm I.D. ; On-column injector ; Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jhrc.1240071206
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  • 92
    Electronic Resource
    Electronic Resource
    Supercritical fluid chromatography/diffuse reflectance Fourier transform infrared spectrometry (1984)
    Weinheim : Wiley-Blackwell
    Journal of High Resolution Chromatography 7 (1984), S. 707-709 
    Details
    ISSN: 0935-6304
    Keywords: Supercritical fluid chromatography, SFC ; Diffuse reflectance infrared spectrometry ; Fourier transform infrared spectrometry ; Spectrometry/chromatography interface ; Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jhrc.1240071210
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  • 93
    Electronic Resource
    Electronic Resource
    Valveless flow switching using constant flow controllers (1984)
    Weinheim : Wiley-Blackwell
    Journal of High Resolution Chromatography 7 (1984), S. 577-577 
    Details
    ISSN: 0935-6304
    Keywords: Multidimensional gas chromatography, MGC ; Deans System ; Temperature programming ; Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jhrc.1240071006
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  • 94
    Electronic Resource
    Electronic Resource
    HPLC analysis of steroid esters (1984)
    Weinheim : Wiley-Blackwell
    Journal of High Resolution Chromatography 7 (1984), S. 584-586 
    Details
    ISSN: 0935-6304
    Keywords: Liquid chromatography, HPLC ; Normal and reversed phases ; Steroid esters ; Long-acting contraceptive ; Injectable contraceptives ; Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jhrc.1240071010
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  • 95
    Electronic Resource
    Electronic Resource
    HPLC on n-propyl picryl ether silica gel (1984)
    Weinheim : Wiley-Blackwell
    Journal of High Resolution Chromatography 7 (1984), S. 714-715 
    Details
    ISSN: 0935-6304
    Keywords: Liquid chromatography, HPLC ; Bonded phases ; Charge-transfer interaction ; n-Propyl picryl ether ; Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 1 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jhrc.1240071213
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  • 96
    Electronic Resource
    Electronic Resource
    High performance liquid chromatographic determination of phenylenediamines in process wastewaters using electrochemical detection (1984)
    Weinheim : Wiley-Blackwell
    Journal of High Resolution Chromatography 7 (1984), S. 709-711 
    Details
    ISSN: 0935-6304
    Keywords: Liquid chromatography, HPLC ; Electrochemical detection ; Phenylenediamines ; Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jhrc.1240071211
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  • 97
    Electronic Resource
    Electronic Resource
    Improved capillary GC/MS interface (1984)
    Weinheim : Wiley-Blackwell
    Journal of High Resolution Chromatography 7 (1984), S. 137-139 
    Details
    ISSN: 0935-6304
    Keywords: Gas chromatography ; Deactivated fused silica tubing ; Zero dead volume union ; Capillary column GC/MS interface ; Test mixture for non-polar columns ; Test mixture of phenols ; Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jhrc.1240070307
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  • 98
    Electronic Resource
    Electronic Resource
    Determination of cyclopentolate by capillary column gas-liquid chromatography (1984)
    Weinheim : Wiley-Blackwell
    Journal of High Resolution Chromatography 7 (1984), S. 144-146 
    Details
    ISSN: 0935-6304
    Keywords: Gas chromatography ; Capillary column ; Cyclopentolate ; Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jhrc.1240070310
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  • 99
    Electronic Resource
    Electronic Resource
    Chromatography calendar (1984)
    Weinheim : Wiley-Blackwell
    Journal of High Resolution Chromatography 7 (1984), S. 165-166 
    Details
    ISSN: 0935-6304
    Keywords: Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jhrc.1240070320
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  • 100
    Electronic Resource
    Electronic Resource
    Analysis of volatile organic compounds in polymers by dynamic headspace and gas chromatography/mass spectrometry (1984)
    Weinheim : Wiley-Blackwell
    Journal of High Resolution Chromatography 7 (1984), S. 185-190 
    Details
    ISSN: 0935-6304
    Keywords: Gas chromatography ; Capillary columns ; Mass spectrometry ; Dynamic headspace ; Deans switching ; Cold trap ; Reinjection ; Polymers ; Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: An experimental method for the analysis of volatile organic compounds in polymers is described. The technique involves dynamic headspace sampling, collection, and concentration of the volatiles in a cold trap, followed by capillary column gas chromatography/mass spectometry. Flow switching is carried out by the Deans switching technique. Four technical polymers used as pharmaceutical packaging materials have been analyzed in order to demonstrate the method.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jhrc.1240070403
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