夏枯草中熊果酸的含量测定
夏枯草,,夏枯草;熊果酸;鉴别;含量测定,1仪器与试药,2夏枯草药材的薄层鉴别,3夏枯草药材中熊果酸的含量测定,4讨论,参考文献
摘 要 目的:对夏枯草药材的鉴别和含量测定进行研究。方法:采用薄层色谱法,用熊果酸为对照品,以ψ(苯∶乙醚∶醋酸乙酯)=7∶2∶1为展开剂鉴别夏枯草药材;采用双波长薄层扫描法,以ψ(苯∶乙醚∶醋酸乙酯)=7∶2∶1为展开剂,选择λS=520 nm、λR=700 nm为扫描波长,对夏枯草中熊果酸的含量进行了测定,并对方法学进行了考察。结果:熊果酸的定性鉴别专属性好;薄层扫描的平均回收率为98.86%,RSD为1.72%。结论:此方法可作为夏枯草的质量分析。关键词 夏枯草;熊果酸;鉴别;含量测定
Determination of ursolic acid in Prunella vulgaris L.
LI Xiaomeng,LIAO Huawei
(Guangdong College of Pharmacy, Guangzhou 510224 )
Abstract Objective: To establish a method for the identification and content determintation of Prunella vulgaris L.. Methods: The main component ursolic acid in Prunella vulgaris L. was identified by TLC. STLC was used to determine the content of Ursolic acid,using benzeneethyl etherethyl acetate(7∶2∶1)as the developing system ......
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