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根据处方中主要化学成分的性质及临床疗效相应的药效学实验为指标，对三种提取工艺进行筛选．并进一步以黄芪甲甙含量、正丁醇提取物含量和薄层层析图谱为指标用正交试验L9（34）法对提取工艺条件进行优化研究．
According to the nature of the main chemical components in the prescription and the corresponding pharmacodynamic experiment for clinical efficacy as indicators, the three extraction processes were screened. Furthermore, the extraction process conditions were optimized by the orthogonal test L9(34) with the content of astragaloside, n-butanol extract content and thin layer chromatogram as indexes.