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复方新诺明片中TMP的含量测定,中国药典(1990年版二部)方法繁琐;非水溶液滴定法虽然加掩蔽剂仍使含量偏高约1%。实验证明非水溶液滴定法以直接抽滤分离辅料,快速准确。
The content of TMP in compound cotrimoxamine tablets is cumbersome in the method of Chinese Pharmacopoeia (1990 edition); although titration with non-aqueous solution still makes content about 1% higher by adding masking agent. Experiments show that non-aqueous titration to direct filtration separation accessories, fast and accurate.