title: Novel nonaqueous capillary electrophoresis separation and determination of bioactive flavone derivatives in Chinese herbs.
abstract: Nonaqueous CE (NACE) coupled to UV detection is described for the separation and determination of bioactive flavone derivatives in Chinese herbs extraction. After optimization of electrophoresis parameters, including the electrolyte nature and the organic solvent composition, a reliable separation of the analytes in an ACN/methanol (60:40, v/v) mixture containing 80 mM Tris and 10 mM sodium cholate was performed. The detection was performed at 254 nm. Method performances, including migration time and peak area reproducibility, linearity, sensitivity, and accuracy, were evaluated. The method was applied to determine bioactive flavone derivatives in seven Chinese herbs.
authors.affiliation: Department of Chemistry, Lanzhou University, Lanzhou, PR China.
authors.forename: Shengda
authors.initials: S
authors.lastname: Qi
authors.forename: Yuqin
authors.initials: Y
authors.lastname: Li
authors.forename: Shuixian
authors.initials: S
authors.lastname: Wu
authors.forename: Xingguo
authors.initials: X
authors.lastname: Chen
authors.forename: Zhide
authors.initials: Z
authors.lastname: Hu
mesh_terms: D004365:Drugs, Chinese Herbal / Q000032:analysis* / Q000737:chemistry; D019075:Electrophoresis, Capillary; D004962:Estranes; D047309:Flavones / Q000032:analysis* / Q000737:chemistry / Q000302:isolation & purification; D006863:Hydrogen-Ion Concentration; D000432:Methanol; D009570:Nitriles; D014325:Tromethamine
chemical_list: D004365:Drugs, Chinese Herbal; D004962:Estranes; D047309:Flavones; D009570:Nitriles; D014325:Tromethamine; C084683:3-hydroxy-5-estrane-17-carbonitrile; D000432:Methanol