(Received 13 March 1990; accepted 29 June 1990)
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Alizarin red S (ARS) is a commonly used organic dye useful in the histologic identification of calcium deposits. ARS also forms colored reaction products with other metal ions, including barium and lead, which are present in primer residue. In histochemical studies. ARS is shown to identify primer residues from several manufacturers as well as primer residue deposited in tissue, either experimentally or in close-range gunshot wounds. This can be easily accomplished with routine histologic techniques. ARS does not stain gunpowder residue, tattoo pigment, melanin, graphite, india ink, or anthracotic pigment.
Resident in pathology and clinical instructor in pathology, University of Southern California, Los Angeles, CA
Chief of autopsy, Los Angeles County-University of Southern California Medical Center, Los Angeles, CA
County of Los Angeles, CA
Stock #: JFS13056J