本文介绍一种黄杨碱Ⅰ号以及其片剂的快速、简便的含量比色测定法。当黄杨碱Ⅰ号含量为0.04～0.40mg/ml时,浓度与吸收度符合比尔定律。经片剂回收试验,平均回收率达99.5%。结果表明,可用于黄杨碱Ⅰ号及其片剂的含置分析。 This article describes a rapid and simple colorimetric assay for the determination of a cupricin I and its tablets. When the content of xanthophylline I was 0.04 to 0.40 mg/ml, the concentration and absorbance were in accordance with Beer’s law. After the tablet recovery test, the average recovery rate was 99.5%. The results show that it can be used for the analysis of the inclusion of xanthopine I and its tablets.