Tetramethylbenzidine Presumptive Blood Test Kit

Many investigators use this highly sensitive test as a confirmatory test after the Phenolphthalein Presumptive Blood Test. A positive presumptive result yields a blue color. Packaged with all the necessary premixed chemicals and supplies to conduct the Tetramethylbenzidine Presumptive Blood Test. The premixed liquid reagents are provided in plastic dropper bottles.