Application
Leukocyte Alkaline Phosphatase (LAP) kits are intended for the semi-quantitative demonstration of alkaline phosphatase activity in white blood cells.
Peripheral blood or bone marrow preparations are fixed to a microscope slide. The film is then incubated in a mixture of naphthol AS-BI alkaline solution with fast blue BB. The resulting insoluble diffuse, blue dye deposit indicates sites of alkaline phosphatase activity.
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