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  • 1
    Electronic Resource
    Electronic Resource
    Anion mass spectrometry of barbiturates (1981)
    Chichester : Wiley-Blackwell
    Biological Mass Spectrometry 8 (1981), S. 231-236 
    Details
    ISSN: 1052-9306
    Keywords: Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Recent trends towards increasing abuse of the barbiturates has led to a proposal to legally restrict some of them. The implementation of the resulting legislation might require specific identification of the barbiturates. Such identification is not readily available from electron impact mass spectra and, even when these are supplemented with chemical ionization data, barbiturates differing only in isomeric sidechains are not completely characterized. In this study the anion mass spectra of 30 barbiturates, including all of those commonly available, are presented. The spectra are simple; ions arising from hydrogen atom and sidechain elimination from the intially formed [M]-. ion are diagnostic of the barbiturate. For all but two of the barbiturates (butalbital and idobutal) relative peak intensities will discriminate between barbiturates differing only in isomeric sidechains.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/bms.1200080508
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  • 2
    Electronic Resource
    Electronic Resource
    The gas chromatography mass spectrometry of the major metabolites of flurazepam (1977)
    Chichester : Wiley-Blackwell
    Biological Mass Spectrometry 4 (1977), S. 248-254 
    Details
    ISSN: 1052-9306
    Keywords: Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Mass spectra and gas chromatographic data are presented for flurazepam and its metabolites; monodesethyl flurazepam, didesethylflurazepam, hydroxyethylflurazepam, N1-desalkylflurazepam, N1-desalkyl-3-hydroxy flurazepam, and flurazepam-N1-acetic acid. The on-column thermal degradation of didesethylflurazepam, N1-desalkyl-3-hydroxyflurazepam and flurazepam-N1-acetic acid is reported and discussed. Mass spectrometric and gas chromatographic data are also presented for the benzophenones obtained by acid hydrolysis of flurazepam and its metabolites. The occurrence of flurazepam metabolites in urine from five forensic cases after various treatments has been investigated. A possible new ‘metabolite’ of flurazepam was detected in two of these cases.
    Additional Material: 12 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/bms.1200040411
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    Paper (German National Licenses)
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