A fluorescence polarization immunoassay (FPIA) for detecting the presence of one or more amphetamine-class analytes in a test sample is provided. The immunoassay uses competition between the analyte and a fluorescently labeled tracer for the binding site on an antibody specific for phenethylamine derivatives. The concentration of amphetamine-class analyte in the sample determines the amount of tracer that binds to the antibody. The amount of tracer/antibody complex formed can be quantitatively measured and is inversely proportional to the quantity of analyte in the test sample. The invention relates to tracers, to immunogens used to elicit antibodies for use as assay reagents, and to assay kits incorporating these tracers and assay reagents.
提供了一种用于检测测试样品中一个或多个苯丙
胺类分析物存在的荧光偏振免疫测定(F
PIA)。该免疫测定利用分析物和荧光标记的示踪剂之间在特异性对苯
乙胺衍
生物的
抗体的结合位点上的竞争。样品中苯丙
胺类分析物的浓度确定了结合到
抗体的示踪剂的量。形成的示踪剂/
抗体复合物的量可以定量测量,并且与测试样品中分析物的数量成反比。该发明涉及示踪剂,用于诱导
抗体用作测定试剂的免疫原,以及包含这些示踪剂和测定试剂的测定试剂盒。