O-Tolidine Presumptive Blood Test - Arrowhead Forensics

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O-Tolidine Presumptive Blood Test

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Many investigators use this reagent as a confi rmatory test after the Phenolphthalein Presumptive Blood Test. A positive presumptive result yields a blue color. Packaged in a plastic box with all the necessary premixed chemicals and supplies to conduct a O-Tolidine Blood Test. The premixed chemicals are packaged in plastic dropper bottles. A known blood standard is included to monitor the results.