title: Large-scale separation of salvianolic acid B from the Chinese medicinal plant Salvia miltiorrhiza by pH-zone-refining countercurrent chromatography.
abstract: pH-Zone-refining countercurrent chromatography was successfully applied to the separation of salvianolic acid B from the Chinese medicinal plant, Salvia miltiorrhiza Bunge, using a multilayer coil planet centrifuge. A 2.0 g quantity of sample was separated using the following two-phase solvent system: methyl tert-butyl ether (MtBE)-water, 10 mM TFA in organic stationary phase and 10 mM ammonia in aqueous mobile phase. The obtained fractions were analyzed by HPLC and ESI-MS. The separation yielded 572 mg of the main component of salvianolic acid B with a purity of 94.1%.
authors.affiliation: Shandong Analysis and Test Center, Shandong Academy of Sciences, Jinan, Shandong, China. wangx@keylab.net
authors.forename: Xiao
authors.initials: X
authors.lastname: Wang
authors.forename: Yanling
authors.initials: Y
authors.lastname: Geng
authors.forename: Fuwei
authors.initials: F
authors.lastname: Li
authors.forename: Jianhua
authors.initials: J
authors.lastname: Liu
mesh_terms: D001572:Benzofurans / Q000032:analysis* / Q000737:chemistry / Q000302:isolation & purification*; D002851:Chromatography, High Pressure Liquid; D003377:Countercurrent Distribution / Q000379:methods*; D006863:Hydrogen-Ion Concentration; D015394:Molecular Structure; D010946:Plants, Medicinal / Q000737:chemistry; D027561:Salvia miltiorrhiza / Q000737:chemistry*; D053630:Depsides
chemical_list: D001572:Benzofurans; C076944:salvianolic acid B; D053630:Depsides