中药汤剂作为中医临床用药的主要剂型 ,具有能随证加减、灵活组方及易于吸收、起效较快等优点 ,但因方中药味较多 ,成分较为复杂 ,单煎与混煎对有效成分提取量的影响、药效的差异一直是有争议的话题。为此 ,我们采用薄层扫描法 ,对黄芪单煎、黄芪与凤尾草混煎两种制剂的黄芪甲? Traditional Chinese medicine decoction, as the main dosage form for clinical use of traditional Chinese medicine, has the advantages of being able to increase or decrease with the license, flexible formulation, and easy absorption and rapid onset. However, due to the fact that the traditional Chinese medicine tastes more and the ingredients are more complex, the single fried and mixed fried The influence of the amount of active ingredient extracted and the difference in drug efficacy has been a controversial topic. To this end, we used a thin-layer scanning method for the yellow peony, astragalus, and astragalus mixed fried two preparations of Astragalus?