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1 仪器与试药UV-260型紫外分光光度计(日本岛津);751G 型分光光度计(上海分析仪器厂);环丙沙星(部颁标准,上海市第二制药厂,批号9207106)2 实验方法与结果2.1 环丙沙星滴耳液的处方及制备2.1.1 处方盐酸环丙沙星 0.23g氯化钠 0.85g醋酸—醋酸钠缓冲液 10.00ml蒸馏水适量全量 100.00ml2.1.2 制备取盐酸环丙沙星溶于醋酸——醋酸钠缓冲液
1 Instruments and reagents UV-260 UV spectrophotometer (Shimadzu); 751G spectrophotometer (Shanghai Analytical Instrument Factory); ciprofloxacin (ministerial standards, the second Shanghai Pharmaceutical Factory, batch number 9207106) 2 Experimental methods and results 2.1 prescription and preparation of ciprofloxacin ear drops 2.1.1 prescription ciprofloxacin hydrochloride 0.23g sodium chloride 0.85g acetic acid - sodium acetate buffer 10.00ml distilled water q.s. 100.00ml2.1.2 Preparation Ciprofloxacin hydrochloride is dissolved in acetic acid-sodium acetate buffer