The recoveries of the four components aminopyrine, phenacetin, caffeine and phenobarbital was 99.6%, 99.7%, 100.0%and 98.2%, and the RSD was 1.1%, 1.2%, 1.9%and 1.9%(n=8) respectively.
The recoveries of the four components aminopyrine, phenacetin, caffeine and phenobarbital was 99.6%, 99.7%, 100.0%and 98.2%, and the RSD was 1.1%, 1.2%, 1.9%and 1.9%(n=8) respectively.
本法测定去痛片中氨基比林、非那西丁、咖啡因和苯巴比妥的含量，回收率分别为99.6%、99.7%、100.0%和98.2%，相对标准偏差分别为1.1%、1.2%、1.9%和1.9%。