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  • 1
    Electronic Resource
    Electronic Resource
    Structure-toxicity relationships for unsaturated alcohols to Tetrahymena pyriformis: C5 and C6 analogs and primary propargylic alcohols (1993)
    Springer
    Bulletin of environmental contamination and toxicology 51 (1993), S. 681-688 
    Details
    ISSN: 1432-0800
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering , Medicine
    Notes: Abstract In summary, the relative toxicity of selected unsaturated alcohols were evaluated in the static Tetrahymena pyriformis population growth assay. The alkyn-1-ols were found to be more toxic than alken-1-ols. Moreover, 2-position unsaturated derivatives were more toxic than other isomers. A linear log Kow dependent relationship was generated (slope = 0.64; intercept = −0.61; r2 = 0.974) for selected 2-alkyn-1-ols. However, the diols were observed to be more toxic than predicted.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00201645
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  • 2
    Electronic Resource
    Electronic Resource
    Reference material “total protein in human urine” (1998)
    Springer
    Fresenius' journal of analytical chemistry 361 (1998), S. 756-760 
    Details
    ISSN: 1432-1130
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract Two batches of a reference material (RM) “total protein in human urine” were prepared for quality assurance in the determination of human urinary proteins. The material was prepared by freeze-drying of a pooled urine sample obtained from healthy volunteers. Protein concentrations in both batches were within physiological values, close to their upper limit. Interlaboratory comparisons conducted in 26 laboratories using the standard operation procedures elaborated for six of the most frequently employed methods (biuret, Bradford, Exton, Lowry, Pesce, and Watanabe) revealed that the results obtained by the individual methods were significantly different due to various reaction mechanisms involved. It was therefore necessary to certify the mean values and their uncertainties individually for each method. These operationally defined certified or information values are valid only when the prescribed standard operation procedures are strictly followed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002160051011
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  • 3
    Electronic Resource
    Electronic Resource
    Effect of ethanol on the urinary excretion of mandelic and phenylglyoxylic acids after human exposure to styrene (1990)
    Springer
    International archives of occupational and environmental health 62 (1990), S. 243-247 
    Details
    ISSN: 1432-1246
    Keywords: Styrene metabolism ; Ethanol effect ; Urinary mandelic acid ; Urinary phenylglyoxylic acid
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Administration of ethanol in several doses during human exposure to styrene can inhibit the urinary mandelic and phenylglyoxylic acid excretion in a way similar to that reported when ethanol was administered as a single dose. Sensitivity to this inhibitory effect has been found to differ with individual subjects. Differences in long-term consumption of ethanol resulting in different induction of the oxidizing enzymes are suggested to account for this finding. Intra-individual variation in the influence of acute ethanol ingestion on the excretion rate of the mentioned acids can also occur. The habit of drinking ethanol might be important, even for partial redirection of the styrene metabolism from styrene glycol oxidation to styrene glycol conjugation with β-glucuronic acid and/or sulfate. The consequences of these observations for the occupational hygiene practice are briefly outlined.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00379441
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  • 4
    Electronic Resource
    Electronic Resource
    Manganese binding in rat bile (1973)
    Springer
    Archives of toxicology 30 (1973), S. 227-236 
    Details
    ISSN: 1432-0738
    Keywords: Manganese ; Bile ; Binding ; Influence on the Bile Composition ; Mangan ; Galle ; Bindung ; Einfluß auf die Zusammensetzung der Galle
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung In der Rattengalle banden sich Mn2+-Kationen an Stoffe niedermolekularen Gewichts. Beim Vorhandensein von Mn2+ wurden Stoffe von noch niedrigerem Molekulargewicht gebildet. Man setzt voraus, daß es sich um Gallenpigmente handelte, die von ihren Trägern in der Galle durch den Einfluß von Mn2+ gelockert wurden. Die Veränderungen in der Gallezusammensetzung kamen sowohl inin vivo- als auchin vitro-Versuchen vor. Die gleichen Veränderungen beobachtete man inin vitro-Versuchen mit der menschlichen Galle.
    Notes: Abstract In rat bile, Mn2+ cations bound to substances of low molecular weight. Substances of still lower molecular weight were formed, in the presence of Mn2+. It is suggested that the substances in question were bile pigments loosened from their carriers in the bile under the influence of Mn2+. The changes in the bile composition occurred in bothin vivo andin vitro experiments. The same changes were observed inin vitro experiments with human bile.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02426046
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  • 5
    Electronic Resource
    Electronic Resource
    Possible connection between lipophilicity and steric substituent constants (1979)
    New York, NY : Wiley-Blackwell
    International Journal of Quantum Chemistry 16 (1979), S. 509-515 
    Details
    ISSN: 0020-7608
    Keywords: Computational Chemistry and Molecular Modeling ; Atomic, Molecular and Optical Physics
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: The steric constants Es and ν have the greatest chance of being independent of lipophilic substituent constants. There is a high probability among hydrocarbon substituents that the steric constants correlate with the lipophilic ones, while in the case of polar substituents the probability is low.
    Additional Material: 5 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/qua.560160309
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  • 6
    Electronic Resource
    Electronic Resource
    Analytische Studie der Reaktion von einwertigem Silber mit Hydrochinon (1961)
    Springer
    Fresenius' Zeitschrift für analytische Chemie 182 (1961), S. 335-343 
    Details
    ISSN: 1618-2650
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Zusammenfassung Es wurde die Reaktion des Hydrochinons mit einwertigem Silber untersucht. Die Stöchiometrie der Reaktion wurde in AbhÄngigkeit von der AlkalitÄt (Ammoniak und NaOH) verfolgt, und die Bedingungen für den quantitativen Verlauf der Reaktion wurden festgelegt. Die erhaltenen Ergebnisse wurden zur ma\analytischen Bestimmung von Silber mit Hydrochinonlösung, sowie von Hydrochinon und Chinon mit AgNO3Lösung ausgenutzt.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00477286
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  • 7
    Electronic Resource
    Electronic Resource
    Chemical transformations of polymers.Presented in part at the IUPAC International Symposium on Macromolecules Aberdeen, September 1973. Part XVII: J. Polym. Sci. C, in press. XVIII. Mercury-complexing polymers with pendent thiol groups. Preparation and medical uses (1975)
    Weinheim : Wiley-Blackwell
    Angewandte Makromolekulare Chemie 44 (1975), S. 67-75 
    Details
    ISSN: 0003-3146
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Description / Table of Contents: Poly(vinyltoluol-α-thiol)und Poly(1-methacryloyl-oxyäthan-2-thiol) werden durch polymeranaloge Hydrolyse der entsprechenden polymeren Isothiuroniumsalze hergestellt. Die Adsorption von Schwermetallen aus Lösungen niedriger Konzentrationen wurde für beide polymeren Thiole untersucht. Die Affinität steigt bei Experimenten in vitro in der Reihe Pb 〈 Ag 〈 Hg an. Bei Experimenten in vivo wurde die Resorption des Quecksilbers im Darmtrakt von Ratten durch das Methacrylatpolymere verhindert, wenn Quecksilberchlorid oder Methylquecksilberchlorid eingesetzt wurde, nicht aber im Falle von Phenylquecksilberchlorid.
    Notes: Poly(vinyltoluene-α-thiol) and poly(1-methacryloyloxyethane-2-thiol) were prepared by the polymeranalogous hydrolysis of the respective polymeric isothiuronium salts. The sorption of heavy metals from low-concentrated solutions was studied for both thiol polymers. Affinity increases in the series Pb 〈 Ag 〈 Hg in experiments in vitro. In vivo the mercury resorption in the gastrointestinal tract of rats was partly blocked by the methacrylate derivative if mercuric chloride or methylmercurichloride was administered (in the case of phenylmercurichloride the polymeric thiol was ineffective).
    Additional Material: 4 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/apmc.1975.050440105
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