An improved radioimmunoassay for benzodiazepines such as diazepam, chlordiazepoxide, oxazepam, demoxepam and metabolites thereof is disclosed. Such immunoassay employs novel .sup.125 I-labelled 4'-hydroxy derivatives of these compounds as tracer.
揭示了一种改进的放射免疫分析法,用于苯二氮卓类药物如
安定、
氯硝西泮、
奥沙西泮、
地莫西泮及其代谢物。这种免疫分析法采用了这些化合物的新型^125I标记的4'-羟基衍
生物作为示踪剂。