Time Since Discharge of Shotgun Shells

    Volume 48, Issue 6 (November 2003)

    ISSN: 0022-1198


    Published Online: 1 November 2003

    Page Count: 4

    (Received 25 June 2003; accepted 7 June 2003)


    A technique for the estimation of time since discharge of a given class of spent shotgun shells is presented. The technique involved the use of SPME (Solid Phase Microextraction) sampling from the atmosphere inside spent shotgun shells. Compounds absorbed on the SPME fiber were desorbed and analyzed with GC-MS. The decrease in concentration of the combustion product naphthalene was monitored in all shells over a two-month period. Three conditions were examined to prevent naphthalene from escaping prior to testing the shells. A glass vial was successfully incorporated to halt the dissipation of naphthalene. At room temperature the naphthalene peak can be measured for several months and the curvefitting data can lead to an estimation of time since discharge.

    Paper ID: JFS2003119

    DOI: 10.1520/JFS2003119

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    Title Time Since Discharge of Shotgun Shells
    Symposium , 0000-00-00
    Committee E30