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采用双波长薄层扫描法对玉屏风散中黄芪甲甙进行定量分析。结果表明，方法准确，重视性好。可作为该制剂的质量控制方法之一。
Double-wavelength thin-layer scanning method was used to quantitatively analyze Astragalus membranaceus in Yupingfeng Powder. The results show that the method is accurate and the emphasis is good. It can be used as one of the quality control methods for this preparation.