title: [Quantitative determination of ursolic acid in Herba cynomorii by ultraviolet spectrophotometry].
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).
authors.affiliation: Shanxi Medical University, Taiyuan 030001.
authors.forename: H
authors.initials: H
authors.lastname: Ding
authors.forename: Y
authors.initials: Y
authors.lastname: Wang
authors.forename: S
authors.initials: S
authors.lastname: Wang
authors.forename: W
authors.initials: W
authors.lastname: You
mesh_terms: D004365:Drugs, Chinese Herbal / Q000737:chemistry*; D019684:Magnoliopsida / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*; D013056:Spectrophotometry, Ultraviolet; D014315:Triterpenes / Q000032:analysis*; D000097245:Ursolic Acid
chemical_list: D004365:Drugs, Chinese Herbal; D014315:Triterpenes; D000097245:Ursolic Acid