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利用示波电位滴定法对药物制剂中的TMP含量进行测定,研究各种实验条件及不同试样的处理,方法变异系数为0.18％,标准加入回收率为96.7％～100.6％,最低检测限量为2.5mg。
The content of TMP in pharmaceutical preparations was determined by oscillopotentiometric titration. Various experimental conditions and the treatment of different samples were studied. The coefficient of variation of the method was 0.18%, the standard addition recovery was 96.7% ~ 100.6%, the lowest detection limit was 2.5mg.