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复方耳必净中主要含乳酸环丙沙星和甲硝唑等成分，为泉州市第一医院药剂科新制剂，但尚未有含量测定的方法。本文应用二阶导数光谱法[1]直接测定乳酸环丙沙星的含量．可消除甲硝唑及其它成分的干扰，操作简便，结果满意，现报告如下。1．仪器及试剂：岛津UV-2100型紫外分光光度
Compound ear net in the main containing ciprofloxacin lactate and metronidazole and other ingredients for the First Hospital of Quanzhou, Pharmacy new agents, but there is no determination of the content. In this paper, second derivative spectroscopy [1] direct determination of ciprofloxacin lactate content. Can eliminate the interference of metronidazole and other ingredients, easy to operate, the results are satisfactory, are as follows. 1. Instruments and reagents: Shimadzu UV-2100 UV spectrophotometry