Application of Solid-Phase Microextraction to the Recovery of Organic Explosives

    Volume 43, Issue 1 (January 1998)

    ISSN: 0022-1198

    CODEN: JFSOAD

    Published Online: 1 January 1998

    Page Count: 6


    Klass, G
    Senior lecturer, University of South Australia,

    Paul Kirkbride, K
    Assistant chief scientist and senior forensic scientist respectively, Forensic Sciences Center, Adelaide,

    Pigou, PE
    Assistant chief scientist and senior forensic scientist respectively, Forensic Sciences Center, Adelaide,

    (Received 29 January 1997; accepted 21 May 1997)

    Abstract

    The application of solid-phase microextraction to the recovery of residues of organic explosives by headspace sampling is discussed. It was found that the technique was rapid and simple. Polydimethylsiloxane and polyacrylate resin were examined as adsorption phases and the latter was found to be more effective. It was found that non-volatile explosives (PETN, RDX, and TNT) should be extracted at about 100°. Acceptable limits of detection were achieved using bench top quadrupole mass spectrometry and short extraction times (about 30 min). Increasing the extraction times to many hours resulted in significantly enhanced detection. Desorption of PETN from the solid phase was found to induce some decomposition of the explosive, but the technique was still valuable for the analysis of this compound.


    Paper ID: JFS16093J

    DOI: 10.1520/JFS16093J

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    Title Application of Solid-Phase Microextraction to the Recovery of Organic Explosives
    Symposium , 0000-00-00
    Committee E30