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复方氯丙嗪注射液中的盐酸氯丙嗪和盐酸异丙嗪吸收曲线相互严重重叠,其含量可用簿层扫描法,多波长数据线性回归法和Y—参比法测定,但均有一定缺陷。双波长倍增差示法是根据双波长系数倍率法原理,用单波长分光光度计可同时测定相互干扰组分。但该法目前在药物分析上应用尚少。本文将其用于制剂分析,操作简便,回收率好。
Chlorpromazine hydrochloride and promethazine hydrochloride in the compound chlorpromazine injection overlap seriously with each other, and the contents of them can be determined by the method of book scanning, multi-wavelength data linear regression and Y-reference method, but all have some defects . Dual-wavelength multiplication differential method is based on the principle of double-wavelength coefficient magnification method, with a single wavelength spectrophotometer simultaneous determination of mutual interference components. However, the law is still used in drug analysis. This article will be used for the preparation of analysis, easy to operate, good recovery.