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采用高效液相色谱法和薄层导析对咳宁含片中的甘草酸进行了含量测定,对甘草、薄荷脑及薄荷油进行了鉴别,操作简便、灵敏、重现性好。
The content of glycyrrhizic acid in the Kekening lozenges was determined by high performance liquid chromatography and thin layer guide analysis. The licorice, menthol and peppermint oil were identified. The operation was simple, sensitive, and reproducible.