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目的：建立益肤丸中香豆素类化合物的薄层色谱鉴别方法，并检查制剂所含水分和重量差异。方法：采用薄层色谱法，以对照品为对照，对益肤丸中羌活、独活进行定性鉴别。采用烘干法对益肤丸进行水分的检查，并采用相应的方法进行重量差异检查。结果：供试品溶液色谱中，在对照品相同位置上，显相同颜色荧光斑点。益肤丸含水量低于15%，重量差异在±8%以内。结论：定性方法准确，重复性好，专属性强，检查方法简单可行，适用于医院制剂的质量控制。“,”Objective To establish a TLC method for identification of coumarin compounds in Yifu Pill,and check the preparation Moisture content and weight difference.Methods Drying method was used to check moisture and adopted corresponding way to check weight difference in Yifu Pill.Result The chromatograms of test sample solution showed same color fluorescent spots at the same position of the standards.The moisture of Yifu Pill was less than 15%,and the weight difference was within ±8%.Conclusion The qualitative method was accurate with high repeatability and strong specificity,and the check method was simple and feasible,it was suitable for the quality control of hospital preparations.