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What is Benzidine Blood Test Procedures about?

The document describes preliminary tests that can be used to identify bloodstains, including the benzidine test and phenolphthalein test. The benzidine test uses benzidine reagent and hydrogen peroxide to detect the presence of peroxidase in blood, which causes a color change. The phenolphthalein test also detects peroxidase in blood using phenolphthalein reagent and hydrogen peroxide. Positive results from these preliminary tests may indicate a stain contains blood but cannot confirm it is human blood. Fur

Author

jovanalyn manangan

Language

EN