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目的 :研究复方磺胺甲口恶唑片更简便的含量测定方法。方法 :用转换曲线分光光度法原理 ,以乙醇 - 0 .1mol·L- 1盐酸 (1∶ 1)为溶剂 ,直接测定复方磺胺甲口恶唑片中 SMZ和 TMP的含量。结果 :SMZ及 TMP的平均回收率和 RSD(n=6 )分别为 (10 0 .0± 0 .2 2 ) %和 (99.88± 0 .90 ) %。结论 :方法简便、快速、准确
Objective: To study the simple and convenient method of determination of compound sulfamethoxazole tablets. Methods: The contents of SMZ and TMP in compound sulfamethoxazole tablets were directly determined by the principle of conversion curve spectrophotometry with ethanol - 0.1 mol·L-1 hydrochloric acid (1: 1) as solvent. Results: The average recoveries of SMZ and TMP and RSD (n = 6) were (100.0 ± 0.2.2)% and (99.88 ± 0.90)%, respectively. Conclusion: The method is simple, rapid and accurate