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采用双波长薄层扫描法测定通脉降糖颗粒中黄芪甲甙的含量，平均回收率９３．５％，ＲＳＤ＝１．９％，方法准确、可靠．
Two-wavelength thin-layer scanning method was used to determine the content of Astragaloside in Tongmai Jiangtang Granules. The average recovery rate was 93.5% and RSD was 1.9%. The method was accurate and reliable.