Volume 30, Issue 3 (July 1985)

    Isotachophoretic Analysis of Bloodstains: Differentiation of Human, Menstrual, Bovine, and Ovine Bloods

    (Received 21 May 1984; accepted 3 December 1984)

    Published Online: July

    CODEN: JFSOAD

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    Abstract

    Isotachophoresis, a technique to separate components by constant current electrophoresis, was used to differentiate between bloodstains of male, female, menstrual, bovine, and ovine bloods on cotton cloth and filter paper. Bloodstain analysis by isotachophoresis of stains from male and female subjects showed identical cationic patterns, but gave different profiles in the anionic system. Plasma had one extra peak in the anionic system when compared to the profile of serum. This extra peak is due to the presence of fibrinogen in plasma. Some hemoglobin peaks overlapped with serum protein peaks, but these could be identified by comparisons at lower concentrations. Menstrual blood had a much different pattern than normal human blood as was expected since many more compounds are found in menstrual blood than in normally circulating blood. Human, bovine, and ovine bloodstains showed different profiles both in the cationic and anionic systems. These results indicate that isotachophoresis can be used for the rapid and simple analysis of bloodstains to differentiate reliably human male, female, and menstrual blood and also to distinguish human bloodstains from those of cattle or sheep.


    Author Information:

    Tu, AT
    Professor, Colorado State University, Fort Collins, CO

    Alsawaf, K
    director of criminal lab, Jed. Division, Makkah,


    Stock #: JFS11027J

    ISSN: 0022-1198

    DOI: 10.1520/JFS11027J

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    Author
    Title Isotachophoretic Analysis of Bloodstains: Differentiation of Human, Menstrual, Bovine, and Ovine Bloods
    Symposium , 0000-00-00
    Committee E30