芫花根注射液是一种粗制剂,成分复杂,含量测定困难,其主要引产成分为芜花酯甲,芫花酯乙,芫花酯丙和芜花酯丁等瑞香烷型二萜原酸酯类,其中以芫花酯甲含量最高。本文以芫花酯甲为标准品,用正交函数分光光度法,测定芫花根注射液中总瑞香烷型二萜原酸酯的含量。其平均回收率为98.9%,变异系数1.6%(n=9)。 Radix Paeoniae Rubra Root Injection is a crude preparation with complex components and difficult content determination. Its main components of induction production are decanoate, acetoside B, squarylate C, and anthraquinone dimethicone. The esters, of which the highest content of glycosides. In this paper, the content of total terained diterpene orthosterate in Radix Paeoniae Rubra was determined by orthogonal function spectrophotometry with scutellarin A as the standard product. The average recovery was 98.9% and the coefficient of variation was 1.6% (n=9).