Library

feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 1
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    International Journal of Mass Spectrometry and Ion Physics 48 (1983), S. 133-136 
    ISSN: 0020-7381
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 2
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Journal of Chromatography B: Biomedical Sciences and Applications 427 (1988), S. 157-161 
    ISSN: 0378-4347
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 3
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Journal of Chromatography B: Biomedical Sciences and Applications 419 (1987), S. 357-362 
    ISSN: 0378-4347
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 4
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Journal of Chromatography B: Biomedical Sciences and Applications 419 (1987), S. 351-356 
    ISSN: 0378-4347
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 5
    Electronic Resource
    Electronic Resource
    Springer
    International journal of legal medicine 89 (1982), S. 181-189 
    ISSN: 1437-1596
    Keywords: Pentacozine, detection in human urine ; Fortral ; Toxicology, Pentacozine ; Pentazocin, Nachweis im Urin ; Fortral ; Toxikologie, Pentazocin-Nachweis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine , Law
    Description / Table of Contents: Zusammenfassung Nach oraler Gabe von Pentazocin (Fortral) konnten im menschlichen Harn neben der unveränderten Ausgangsverbindung noch mehrere Ausscheidungsprodukte mit Hilfe der GC/MS nachgewiesen werden. Zu deren Identifizierung gelangte, neben der EI- und CI-Massenspektrometrie, die seit kurzem kommerziell erhältliche FAB-MS zur Anwendung. Die Untersuchungen wurden mit einem VG-Micromass 7035 durchgeführt, wobei die Proben über eine fused-silica, bonded-phase-Kapillare (30 m; DB-1; J + W, Inc.) in die Ionenquelle eingeführt wurden. Das analytische Verhalten von Reinsubstanz und einigen Metaboliten wird ebenso diskutiert wie das Verhalten der Reinsubstanz unter den Bedingungen der salzsauren Hydrolyse.
    Notes: Summary After oral application of pentacozine (Fortral) besides the unchanged drug some further excretion products were detected by glc/ms in human urine. For their identification e.i.- and c.i.-mass-spectrometry as well as the just recently available FAB-technique were employed. All analyses were performed on a VG-Micromass 7035; the samples were introduced in the ion source via a fused silica, bonded phase capillary column (30 metres; DB-1 J + W, Inc.). The analytical profiles of the pure substance and some metabolites are reported as well as the behaviour of the pure substance on acidic hydrolyzation.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 6
    Electronic Resource
    Electronic Resource
    Springer
    International journal of legal medicine 90 (1983), S. 229-238 
    ISSN: 1437-1596
    Keywords: Pirisudanole-Stivane, analytical profile, detection in urine ; Pirisudanol-Stivane, analytische Kenndaten, Nachweis im Urin
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine , Law
    Description / Table of Contents: Zusammenfassung Die chromatographischen und spektroskopischen Eigenschaften (DC; UV; IR;1H-NMR; GC/MS) des Psychoanalepticums Stivane (= Dimaleat; I) werden zusammenfassend referiert, wobei auch auf einige analytische Besonderheiten eingegangen wird. Anschließend wird über die bei den Ausscheidungsversuchen im menschlichen Harn erhaltenen Ergebnisse berichtet: nach salzsaurer Hydrolyse war im alkalischen und sauren Extraktjeweils ein Abbauprodukt—nicht jedoch die unveränderte Ausgangsverbindung — nachweisbar.
    Notes: Summary The chromatographic and spectroscopic properties (TLC; UV; IR;1H-NMR; GC/MS) of the psychostimulant Stivane (dimaleate; I) are presented in detail, describing some analytic peculiarities of the pure substance as well. Moreover, the results of the renal excretion studies are reported: after hydrolysis in each of the acidic and basic urine extracts a degradation product—but no unchanged drug—could be detected.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 7
    ISSN: 1437-1596
    Keywords: Mefexamide, pharmacokinetics ; Desmethyl-Mefexamide ; Pharmakokinetik ; Desmethyl-Mefexamid
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine , Law
    Description / Table of Contents: Zusammenfassung Nach oraler Einnahme von 400 mg Mefexamidhydrochlorid wurden für die Ausscheidung von Mefexamid (I) und dessen Hauptmetaboliten Desmethyl-Mefexamid (II) im menschlichen Harn die folgenden pharmakokinetischen Parameter bestimmt: 1. Die Eliminierung von I und II erfolgt nach einer Kinetik 1. Ordnung. 2. Die Eliminationshalbwertzeit t 1/2 beträgt für I 4–6, für II 4,5–6,5 h. 3. Die Eliminationskonstante k 2 liegt für I und II zwischen 0,10 und 0,20 h−1. 4. 5–10% der eingenommenen Dosis werden unverändert, 10–16% als Desmethyl-Mefexamid innerhalb 72 h nach Applikation ausgeschieden. 5. Der dünnschichtchromatographische und gaschromatographisch/massenspektrometrische Nachweis der Verbindungen gelingt mit den angegebenen Methoden problemlos bis mindestens 72 h nach Einnahme. 6. Verbindung II wird zu etwa gleichen Teilen frei und konjugiert ausgeschieden.
    Notes: Summary After oral ingestion of 400 mg Mefexamidehydrochloride for Mefexamide (I) and its main degradation product Desmethyl-Mefexamide (II) the following pharmakokinetic parameters have been determined: 1. Elimination of I and II follows 1st order kinetics. 2. Biological half-life t 1/2 for I is 4–6, for II 4.5–6.5 h. 3. Elimination rate constant for I and II is between 0.10 to 0.20 h−1. 4. 5–10% of the administered drug are excreted unchanged, 10–16% as Desmethyl-Mefexamide within 72 h after ingestion. 5. The described thinlayer chromatographic and gas chromatographic/mass spectrometric methods allow detection of I and II for at least 72 h after application. 6. II is excreted free and conjugated in nearly equal amounts.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 8
    Electronic Resource
    Electronic Resource
    Springer
    International journal of legal medicine 89 (1982), S. 191-195 
    ISSN: 1437-1596
    Keywords: FAB (Fast Atom Bombardment)-MS ; Drug-glucuronides of Codeine, p-Nitrophenol and 2-Phenyl-l-propanol ; FAB (Fast Atom Bombardment)-MS ; Arzneimittel-Glucuronide von Codein, p-Nitrophenol und 2-Phenyl-l-propanol
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine , Law
    Description / Table of Contents: Zusammenfassung Die vorliegende Arbeit zeigt einige Anwendungsmöglichkeiten der seit ca. einem Jahr kommerziell erhältlichen FAB (Fast Atom Bombardment)-massenspektrometrischen Untersuchungstechnik in der analytisch-forensischen Toxikologie auf. Dazu werden die mit Hilfe der positiv-/negativ-Ionen-FAB-MS erhaltenen Massenspektren einiger repräsentativer Arzneimittel-Glucuronide (Codein, p-Nitrophenol und 2-Phenyl-l-propanol) vorgestellt und diskutiert. Die bisher erzielten Ergebnisse zeigen klar, daß diese neue massenspektrometrische lonisierungstechnik nicht nur dem (forensischen) Chemiker neue, zusätzliche analytische Möglichkeiten eröffnet.
    Notes: Summary The FAB (Fast Atom Bombardment)-mass spectrometric ionization technique, which has now been available for about 1 year, has been successfully employed in forensic toxicology. The mass spectral behaviour of some representative drug-glucuronides (Codeine, p-Nitrophenol and 2-Phenyl-1-propanol) were studied by positive- and negative-ion-FAB-MS. The presented promising results may be of some interest, not only for the analytical toxicologist.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 9
    Electronic Resource
    Electronic Resource
    Springer
    International journal of legal medicine 85 (1980), S. 295-303 
    ISSN: 1437-1596
    Keywords: Clobazam identification ; Gas chromatography/mass spectrometry, clobazam ; Clobazam-Nachweis ; GC/MS, Clobazam
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine , Law
    Description / Table of Contents: Zusammenfassung Clobazam (Frisium) wurde nach drei zur Analyse von 1,4-Benzodiazepinen üblichen Hydrolysemethoden hydrolysiert; die Reaktionsprodukte wurden gaschromatographisch-massenspektrometrisch sowie dünnschichtchromatographisch untersucht. Dabei konnten fünf Abbauprodukte nachgewiesen werden, für die Strukturvorschläge diskutiert werden. Zwei dieser Verbindungen konnten nach Medikamenteneinnahme auch im menschlichen Urin identifiziert werden. Für einige der vorgestellten Substanzen müssen jedoch thermisch bedingte Zersetzungen und Umlagerungen auf der GC-Säule bzw. hydrolyse- und aufarbeitungsbedingte Artefaktbildungen bedacht werden.
    Notes: Summary Clobazam (Frisium) was hydrolyzed according to three methods commonly used in the determination of 1.4-benzo-diazepines; the reaction products were analyzed by gas chromatography/mass spectrometry and thinlayer chromatography. Five degradation products were obtained for which structure proposals are discussed. After oral intake two of these substances were also detected in human urine. It should be recognized that some of the above mentioned substances may be on-columm degradation products of artifacts occurring during hydrolyzation and/or sample clean-up.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 10
    Electronic Resource
    Electronic Resource
    Springer
    European journal of clinical pharmacology 55 (1999), S. 593-598 
    ISSN: 1432-1041
    Keywords: Key words Irbesartan ; Warfarin ; Pharmacokinetics
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Medicine
    Notes: Abstract Objectives: To determine whether the initiation or titration of irbesartan alters the pharmacodynamics and/or pharmacokinetics of warfarin in a clinically significant manner, thereby requiring additional monitoring of the anticoagulant effect of warfarin. Methods: Daily doses of warfarin were administered to 16 healthy males for 21 days (10 mg on day 1 and 2.5–10 mg on days 2–21). Irbesartan (300 mg/day) or placebo was concomitantly administered on days 15–21. The pharmacodynamic parameters prothrombin time (PT) and prothrombin time ratio (PTR) were evaluated throughout the study. Plasma and urine samples were collected before and up to 24 h after administration on days 14, 15 and 21 for the determination of the maximum concentration (Cmax), time to reach Cmax (tmax), the area under the concentration–time curve (AUC) of S-warfarin and the cumulative urinary excretion of warfarin and its metabolites. Pre-dose plasma samples were also collected to determine the Cmin of S-warfarin (days 12, 13, 14 and 21) and irbesartan (days 19, 20 and 21). Results: Analysis of PTR data revealed no significant difference between the group mean PTR values at day 22 and those at day 15 (P=0.699). S-warfarin concentrations in plasma and urine, as well as the urinary concentrations of the metabolites of warfarin, were not affected by concomitant single- or multiple-dose administration of irbesartan. Plasma Cmin concentrations of S-warfarin and irbesartan were also not affected. Conclusions: No clinically important effect of irbesartan on the pharmacodynamics and pharmacokinetics of warfarin are likely to occur during concomitant administration; therefore, neither a dosage adjustment of irbesartan or warfarin nor any additional monitoring of the anticoagulant effect of warfarin is necessary.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...