采用盐酸直接滴定法和回滴定法分别测定生川乌、蒸川乌和煮川乌中总生物碱的含量,测定结果比较,以回满定法较为准确。另采用异羟肟酸反应—高氯酸铁显色分光光度法测定上述三种川乌样品中的酯型生物碱。此法具有简便、实用、显色稳定性好的优点,可作为控制乌头类药材中毒性生物碱的方法之一。 The contents of total alkaloids in S. chuanxiu, S. chuanxiong, and S. chuanxiu were determined by direct titration with hydrochloric acid and back titration. The results were compared and the full-scale method was more accurate. Another hydroxamic acid reaction - perchlorate color spectrophotometric determination of the three kinds of Chuanwu samples of ester alkaloids. This method has the advantages of convenience, practicality, and good color stability, and can be used as one of the methods for controlling toxic alkaloids in Aconitum.