N van Rooy

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The use of 3,3',5,5' - tetramethylbenzidine as non-mutagenic chromogen for the end point determination in enzyme-immunoassay (EIA) is described. In sandwich EIAs for HCG and HBsAg and in a competitive EIA for testosterone, the colour yield with TMB was superior to that obtained with o-phenylene diamine (OPD), which was by far the best chromogen for(More)
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