title: Multidimensional counter-current chromatographic system and its application.
abstract: A multidimensional counter-current chromatographic system was set up for the first time with two sets of high-speed counter-current chromatography instruments. This system was successfully applied to the preparative separation of isorhamnetin, kaempferol and quercetin from crude flavone aglycones of Ginkgo biloba L. and Hippophae rhamnoides L. with a two-phase solvent system composed of chloroform-methanol-water (4:3:2, v/v/v).
authors.affiliation: Beijing Institute of New Technology Application, China.
authors.forename: F
authors.initials: F
authors.lastname: Yang
authors.forename: J
authors.initials: J
authors.lastname: Quan
authors.forename: T Y
authors.initials: TY
authors.lastname: Zhang
authors.forename: Y
authors.initials: Y
authors.lastname: Ito
mesh_terms: D000998:Antiviral Agents / Q000032:analysis / Q000737:chemistry; D002853:Chromatography, Liquid / Q000295:instrumentation / Q000379:methods*; D032462:Cycadopsida / Q000737:chemistry*; D005419:Flavonoids / Q000032:analysis* / Q000737:chemistry; D044948:Flavonols; D044949:Kaempferols; D011794:Quercetin / Q000031:analogs & derivatives / Q000032:analysis / Q000737:chemistry
chemical_list: D000998:Antiviral Agents; D005419:Flavonoids; D044948:Flavonols; D044949:Kaempferols; C047368:3-methylquercetin; C006552:kaempferol; D011794:Quercetin