目的:建立疏导片的质量标准。方法:采用薄层色谱法(TLC法)对方中的木香、厚朴、甘草进行定性鉴别。结论:疏导片中的木香、厚朴、甘草的薄层色谱具有鉴别特征,主斑点Rf值与木香对照药材、厚朴酚、甘草次酸对照品均相同,分别为0.74、0.63和0.69。方法重现性好、简便、实用,可用于疏导片的质量控制。 Objective: To establish a quality standard for guiding sheets. METHODS: The qualitative identification of the woody, honokiol, and licorice in the other party was performed by thin layer chromatography (TLC). Conclusion: The thin-layer chromatograms of woody, honokieus and licorice in the decontamination tablets have distinguishing characteristics. The Rf value of the main spot is the same as that of the woody reference drug, honokiol, and glycyrrhetinic acid reference substance, which are 0.74, 0.63, and 0.69 respectively. . The method has good reproducibility, is simple and practical, and can be used for the quality control of the guiding sheet.