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萃取-分光光度法测定越婢汤中麻黄碱的含量,用一次定量分取氯仿层的方法,平均回收率为98.32%,RSD为2.28%。
The extraction-spectrophotometric method was used to determine the content of ephedrine in Yueyu Decoction. The method was used to quantitatively separate the chloroform layer. The average recovery rate was 98.32% and the RSD was 2.28%.