Rapid immunoperoxidase staining of lymphocyte antigens using microwave irradiation

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Abstract
The innovative application of microwave irradiation in the immunoperoxidase staining of a wide range of labile lymphocyte antigens is described. Fifteen second irradiation at 320 watts produced excellent adherence of the frozen sections to the glass slides without loss of surface antigen staining. This brief procedure eliminated the need for much longer periods of freeze drying or drying at 4°C. Microwave irradiation was also used to accelerate the incubation of the primary antibody. Thirty seconds of irradiation at 320 watts produced specific antigen staining of an intensity which was as good as that obtained with much longer durations of incubations at room temperature. Cytomorphologic preservation was also good and background staining was minimal.