Volume 32, Issue 6 (November 1987)

    Electrophoresis Reliability: I. The Contaminant Issue

    (Received 15 January 1987; accepted 6 April 1987)

    Published Online: November

    CODEN: JFSOAD

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    Abstract

    The effects of the common contaminants—soil, oil, gasoline, salt, acid, base, bleach, and detergent—on various forensically used genetic marker systems were studied. The predicted effects of the various contaminants on the proteins and the electrophoretic separations agreed with the observed results. A contaminant that affected protein conformation also adversely affected the integrity of the electrophoretic system, thus signalling an anomaly. It also was pointed out that the ideal control study for the effects of contaminants on genetic markers in evidentiary material is often provided to forensic scientists—that is victim's blood on victim's clothing and other substrata. The data presented in this paper support the validity and reliability of electrophoretic analyses of evidentiary material with respect to the contaminant issue.


    Author Information:

    Budowle, B
    Research chemist, Forensic Science Research and Training Section, Laboratory Division, FBI Academy, Quantico, VA

    Allen, RC
    Full professor, Medical University of South Carolina, Charleston, SC


    Stock #: JFS11213J

    ISSN: 0022-1198

    DOI: 10.1520/JFS11213J

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    Author
    Title Electrophoresis Reliability: I. The Contaminant Issue
    Symposium , 0000-00-00
    Committee E30