Volume 48, Issue 6 (November 2003)

    A New Method for Collection and Identification of Gunshot Residues from the Hands of Shooters

    (Received 12 July 2003; accepted 8 July 2003)

    Published Online: November

    CODEN: JFSOAD

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    Abstract

    This work presents a novel collection method for gunshot residues (GSR) using a sampling procedure based on ethylenediaminetetraacetic acid (EDTA) solution as a complexing agent on moistened swabs. Detection was via a sector-field inductively coupled plasma mass spectrometry (HRICP-MS). The proposed collection and analytical method allowed detection of antimony (Sb), barium (Ba) and lead (Pb) after .38 shot tests, at detection limits of less than 1 µg L-1 in four different areas of the hands of volunteers. This paper includes a discussion concerning hand areas near the thumb and forefinger as being more suitable for GSR collection as well as a comparison between differences observed using 2% diluted EDTA, 2% nitric acid solution, and simple deionized water as collecting solutions, proving the superior efficiency of EDTA in GSR recoveries.


    Stock #: JFS2002441

    ISSN: 0022-1198

    DOI: 10.1520/JFS2002441

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    Author
    Title A New Method for Collection and Identification of Gunshot Residues from the Hands of Shooters
    Symposium , 0000-00-00
    Committee E30