蛇胆川贝液是一种常用的止咳化痰良药,收载于卫生部药品标准中药成方制剂第九册。标准中有两个鉴别项,其中鉴别项(1)是用薄层色谱法鉴别处方中的蛇胆汁,以蛇胆汁为对照药材,其展开系统为甲苯-异丙醇-冰醋酸-甲醇-水(8:4:2:3:1),为酸性展开系统。我们按标准提供的展开系统检验了山东、湖北四 Shedan Chuanbei liquid is a commonly used medicine for relieving cough and phlegm, and it is contained in the ninth volume of the traditional Chinese medicine prescription prepared by the Ministry of Health. There are two identification items in the standard. The identification item (1) is to identify the snake bile in the prescription by thin layer chromatography. The snake bile is used as the control medicine. The development system is toluene-isopropanol-glacial acetic acid-methanol-water. (8:4:2:3:1), an acidic deployment system. We tested the Shandong and Hubei four