采用双波长薄层扫描法测定抗肾衰胶囊中黄芪甲甙的含量。样品经适当提取后在硅胶板上展开 ,展开剂为氯仿 :甲醇 :水 (6 5∶35∶10 )下层 ,经扫描 (扫描条件 :λs=5 5 0 ,λr=70 0 ) ,测得样品含量为31 6 %(mg g) ,平均回收率为 10 4 5 %,RSD为 3 6 2 %。实验证明此方法简便、准确、可靠 ,能控制抗肾衰胶囊质量。 The dual-wavelength thin-layer scanning method was used to determine the content of Astragaloside IV in Kangshuai Capsule. Samples were extracted and then developed on silica gel plates. The developing solvent was chloroform : methanol : water (6 5:35:10) lower layer. After scanning (scan conditions: λ s = 550, λr = 70 0 ), samples were obtained. The content was 31 6% (mg g), the average recovery was 1045%, and the RSD was 362%. Experiments show that this method is simple, accurate and reliable, and can control the quality of anti-renal failure capsules.