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目的 测定麻黄汤分煎、合煎汤剂中甘草酸含量。方法 采用 HPL C法测定麻黄汤分煎与合煎液中甘草酸的含量。选 Hypersil C1 8柱 ,流动相 :乙腈 - 0 .1%乙酸水溶液 (33∶ 6 7) ,检测波长 2 5 4nm。结果 分煎液甘草酸平均回收率为 10 2 .43% ,RSD =2 .6 5 % ;合煎液甘草酸平均回收率为 99.41% ,RSD=3.11%。结论 方法简便、准确 ,复方中其它成分对测定无干扰
Objective To determine the content of glycyrrhizic acid in Mahuang Decoction and Hejian Decoction. Methods HPL C method was used to determine the content of glycyrrhizic acid in the decoction and decoction of Mahuang Decoction. Selected Hypersil C18 column, mobile phase: acetonitrile - 0. 1% aqueous acetic acid (33: 67), detection wavelength 254nm. Results The average recovery rate of glycyrrhizic acid in the decoction was 102.43%, RSD =2.65%; the average recovery rate of glycyrrhizic acid in combined decoction was 99.41%, and the RSD was 3.11%. Conclusion The method is simple and accurate, and other components in the compound do not interfere with the determination