通过对药材提取及精制条件的考察，确定本口服液的制备工艺为水煎煮２次，６０％醇沉精制，以紫外吸收光谱及黄芪的薄层层析图谱作为本制剂的定性指标；以橙皮甙为标准品，按四氢硼钠显色法测定口服液中二氢黄酮类成分的含量，作为制剂的定量指标。 Through the examination of the extraction and purification conditions of medicinal materials, it was determined that the preparation process of this oral solution was water decoction 2 times, 60% alcohol-settling refining, and the ultraviolet absorption spectrum and the thin layer chromatogram of Astragalus membranaceus were used as the qualitative indicators of the preparation; The orange peel was used as a standard product, and the content of dihydroflavonoids in the oral liquid was measured by sodium tetrahydroborate colorimetry as a quantitative index of the preparation.