【摘要】 目的 :建立用反相HPLC法测定小儿开胃口服液 (刺五加 ,鸡内金 ,草豆蔻 ,牵牛子 )中异嗪皮啶含量的方法。方法 :使用Symmetry C18色谱柱 (5 μm ,3.9× 15 0mm) ,以甲醇 - 0 .1%甲酸水溶液 (30∶70 )为流动相 ,流速 0 .8mL·min-1,检测波长为 342nm。柱温为 (30± 1)℃。结果 :在一定范围内异嗪皮啶含量呈现良好的线性关系 (r =0 .9993) ;精密度可靠 (RSD =1.87% ) ;样品在 6h内基本稳定。结论 :本研究为小儿开胃口服液的质量控制提供了一定的参考依据更多还原

【Abstract】 Objective: To establish a method for determination of isofraxidin in Xiaoerkaiwei Oral Liquid (Radix Acanthopanacis Senticosi, Endothelium Corneum Gigeriae Galli, Semen Alpiniae Katsumadai, Semen Pharbitidis, etc.) by RP HPLC. Methods: The HPLC system consisted of Symmetry C 18 column(3.9m×150mm, 5μm), methanol water (0.1% formic acid) (30∶70) mixture as a mobile phase, detection wavelength at 342nm, 0.8mL·min -1 of flow rate and column temperature at 30℃.Results: The calibration curves of the isofraxidin were linear ( r =0.9993). The precision were perfect ( RSD =1.87). The samples were stable in 6 h. The average recovery of Xiaoerkaiwei Oral Liquid was 102.4% with RSD of 1.76%.Conclusion: This method is simple, quick and specific, suitable for the quality control.更多还原