Combination Blood Test Kits

Combination Blood Test Kits

Many investigators use the combination of two different tests as a presumptive test and confirmatory test for the presence of blood. Packaged with all the necessary premixed chemicals and supplies to conduct either the phenolphthalein and ortho-tolidine blood tests or the phenolphthalein and leucocrystal violet blood test. The premixed liquid reagents are provided in plastic dropper bottles.