| 分光光度法测定苦丁茶中的熊果酸含量 |
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| 引用本文： | 汤小胜.分光光度法测定苦丁茶中的熊果酸含量[J].广州化工,2007,35(4):48-50. |
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| 作者姓名： | 汤小胜 |
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| 作者单位： | 湖北师范学院生物系,湖北,黄石,435002 |
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| 摘 要： | 用5%香草醛-冰醋酸及高氯酸显色,在波长548nm处用分光光度法测定了海南苦丁茶中的熊果酸含量。回归方程为Y=0.04473X 0.08073,相关系数r=0.9983。熊果酸平均回收率为101.2%,RSD为2.01%(n=5)。本法操作简便、可行、重现性好。
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| 关 键 词： | 苦丁茶 熊果酸 分光光度法 含量测定 |
Spectrophotometric Determination the Content of Ursolic Acid in Kudingcha |
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| TANG Xiao-sheng.Spectrophotometric Determination the Content of Ursolic Acid in Kudingcha[J].GuangZhou Chemical Industry and Technology,2007,35(4):48-50. |
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| Authors: | TANG Xiao-sheng |
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| Affiliation: | Department of Biology, Hubei Normal University, Huangshi 435002, China |
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| Abstract: | 5 % vanillin acetum and perchloric acid as color developer, the content of ursolic acid of kud- ingcha growed in Hainan province was determined at 548 nm. The linear regression equation is Y=0. 04473X 0. 08073, r=0.9983. The average recovery was 101.2 %, and RSD=2.01%(n=5). The method is simple, repro- ducible and practicable for the determination of ursolic acid. |
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| Keywords: | kudingcha ursolic acid spectrophotometry determination |
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