【摘要】 目的　建立复方红霉素洗剂中甲硝唑的含量测定方法。方法　采用紫外分光光度法 ,以盐酸溶液 (9→ 10 0 0 )为溶剂 ,测定波长为 2 77nm。结果　甲硝唑的检测线性范围为 3～ 2 1μg·mL-1,r=0 .9999,平均回收率为 99.83%。结论　本法操作简便 ,准确性好 ,可作为复方红霉素洗剂中甲硝唑的含量测定方法。更多还原

【Abstract】 OBJECTIVE To establish an UV-spectrophotometry to determine the content of metronidazole in the compound erythromycin lotion. METHOD The hydrochloric acid solution (9→1000) was used as solvent. The wavelength of detection was 277nm.RESULTS The calibration curve was linear(r =0.9999) within the range of 3～21μg·mL -1 of metronidazole.The average recovery was 99.83%.CONCLUSION The method is simple and accurate, and can be applied to determine the metronidazole content in the compound erythromycin lotion.更多还原