This disclosure relates to a method and reagents for determining amphetamine and methamphetamine in a biological fluid such as urine. In particular, this disclosure relates to a fluorescence polarization immunoassay procedure for determining the presence of amphetamine and methamphetamine in a single assay and to a novel class of tracer compounds employed as reagents in such procedures. The procedure described includes pretreatment of the biological sample to eliminate cross-reactants such as .beta.-hydroxyphenethylamine by preincubating the sample solely with an aqueous periodate solution having a pH from about 4.0 to about 7.5 without adjustment to an alkaline pH.
本公开涉及一种用于测定
生物液体(如尿液)中苯
丙胺和甲基苯
丙胺的方法和试剂。具体而言,本公开涉及一种荧光偏振免疫测定程序,用于确定单个测定中苯
丙胺和甲基苯
丙胺的存在,以及在这种程序中使用的新型示踪剂化合物的一类。所述程序包括对
生物样品进行预处理,以消除交叉反应物,例如β-羟基苯
乙胺,通过仅将样品与pH约为4.0至约7.5的
水期酸溶液预孵育,而不需要调整为碱性pH。