Volume 27, Issue 3 (July 1982)

    Analysis of Chemical Protection Sprays by Gas Chromatography/mass Spectroscopy

    (Received 1 September 1981; accepted 2 December 1981)

    Published Online: July

    CODEN: JFSOAD

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    Abstract

    Gas chromatography/mass spectroscopy (GC/MS) is a rapid and sensitive technique for the identification of the active ingredients of commercially available chemical protection sprays. Chloroacetophenone (CN) and o-chlorobenzalmalononitrile (CS) are easily extracted from the liquid sprays with methanol. A basic aqueous extraction procedure is needed for sprays containing capsaicin. Residues can be further purified by preparative thin-layer chromatography. Clothing can also be analyzed for the presence of tear gas residue. The compound CN can be identified by analyzing a heated vapor headspace sample of the cloth by GC/MS. A hexane wash of the cloth is needed for identification of CS and capsaicin.


    Author Information:

    Nowicki, J
    Forensic scientist, Bureau of Scientific Services, Illinois Department of Law Enforcement, Joliet,


    Stock #: JFS12178J

    ISSN: 0022-1198

    DOI: 10.1520/JFS12178J

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    Author
    Title Analysis of Chemical Protection Sprays by Gas Chromatography/mass Spectroscopy
    Symposium , 0000-00-00
    Committee E30