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  • Title: A rapid dot-blot method for species identification of bloodstains.
    Author: Matsuzawa S, Kimura H, Itoh Y, Wang H, Nakagawa T.
    Journal: J Forensic Sci; 1993 Mar; 38(2):448-54. PubMed ID: 8455001.
    Abstract:
    A very simple and rapid test for species identification is reported. Extracts of bloodstains were applied to a synthetic porous membrane and dried. The membrane was then quenched with glycine buffered saline containing BSA and Tween 20. A suspension of colloidal gold particles (GP) coated with rabbit antiserum to human IgG was poured onto, gently whirled and aspirated through the membrane. Spots from the human and monkey bloodstains became red, whereas those from other species of animals remained unstained. This test was completed within 3 to 4 min, and the antibody-coated GP reagent was prepared within 20 min using a very small quantity of antiserum. Cellulose acetate membranes of 0.45 microns or more in pore size were appropriate to this test.
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