Use of azide and hydrogen peroxide as an inhibitor for endogenous peroxidase in the immunoperoxidase methodCY Li, SC Ziesmer and O Lazcano-Villareal Department of Laboratory Medicine, Mayo Clinic, Rochester, Minnesota 55905. We describe a simple and effective method for inhibition of endogenous peroxidase activity in the immunoperoxidase technique. Specimens are pre-treated with a mixture of azide and hydrogen peroxide, which is then followed by an indirect immunoperoxidase procedure. Comparison studies showed no significant loss of antigenicity or morphological details by this pre-treatment. The method is most useful for evaluating cell-specific antigens on specimens that have abundant endogenous peroxidase activity, such as blood and bone marrow.
Volume 35,
Issue 12,
pp. 1457-1460,
12/01/1987
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