Characterization of Lachrymators by Ambient Temperature Ion Mobility Spectrometry

    Volume 42, Issue 2 (March 1997)

    ISSN: 0022-1198

    CODEN: JFSOAD

    Page Count: 4


    McLeod, CW
    Professor, University of Sheffield,

    Allinson, G
    Lecturer, School of Aquatic Science and Natural Resources Management, Deakin University, Victoria,

    (Received 2 May 1996; accepted 5 July 1996)

    Abstract

    Current methods for the detection of tear gas residues require extensive sample preparation before spectral measurement. This contrasts with the present work in which a new detection method for the active ingredients of CN (α-chloroacetophenone), CS (2-chlorobenzylidenemalononitrile), and pepper sprays (capsaicin and crude pepper extracts) based on ambient temperature, atmospheric pressure ion mobility spectrometry has been developed. The minimum determinable limits were: α-chloroacetophenone 0.1 μg, 2-chlorobenzylidenemalononitrile 25 mg, and cayenne pepper 5 mg. These limits were dependent on the vapor pressure, proton affinity and electronegativity of the target molecule.


    Paper ID: JFS14118J

    DOI: 10.1520/JFS14118J

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    Title Characterization of Lachrymators by Ambient Temperature Ion Mobility Spectrometry
    Symposium , 0000-00-00
    Committee E30