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应用紫外分光光度法测定柴黄口服液中黄芩甙含量。采用加酸沉淀后直接测定，有效地消除了干扰组分的影响，方法简便、快速、准确，结果满意。
Determination of Astragalus in Chaihuang Oral Liquid by UV Spectrophotometry. After the acid precipitation was used for direct determination, the influence of the interference components was effectively eliminated. The method was simple, rapid, accurate, and the results were satisfactory.