[Quantitative determination of ursolic acid in Herba cynomorii by ultraviolet spectrophotometry].
作者信息
Ding H, Wang Y, Wang S, You W
机构信息
Shanxi Medical University, Taiyuan 030001.
出版信息
Zhongguo Zhong Yao Za Zhi. 1998 Feb;23(2):102-3, inside back cover.
PMID:11596256
Abstract
Ursolic acid was isolated form Herba Cynomorii by thin layer chromatography and was quantitatively determined by ultraviolet spectrophotometry. The results indicate that the content of ursolic acid is 0.78%. The average recovery rate of ursolic acid is 97.4%, RSD = 0.45% (n = 4).
摘要
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