申请人:Abbott Laboratories
公开号:US05248791A1
公开(公告)日:1993-09-28
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.
本发明提供了一种荧光偏振免疫测定法(FPIA),用于检测测试样品中一种或多种苯丙胺类分析物的存在。该免疫测定法利用分析物与荧光标记示踪剂在特异于苯乙胺衍生物的抗体结合位点上的竞争。样品中苯丙胺类分析物的浓度决定了结合到抗体的示踪剂的数量。所形成的示踪剂/抗体复合物的数量可以定量测量,并且与测试样品中分析物的数量成反比。本发明涉及示踪剂,用于引发用作测定试剂的抗体的免疫原,以及包含这些示踪剂和测定试剂的测定试剂盒。