简介:A high-speed counter-current chromatography (HSCCC) method for preparative separation and purification of five hydroxyanthraquinones
and cinnamic acid from the Chinese medicinal herb Rheum officinale Baill. was develope简介:A high-speed counter-current chromatography (HSCCC) method for preparative separation and purification of five hydroxyanthraquinones
and cinnamic acid from the Chinese medicinal herb Rheum officinale Baill. was developed by using pH-gradient elution. The purities of rhein,
emodin, aloe-emodin, chrysophanol, physcion and cinnamic acid were all over 98%, as determined by high performance liquid chromatography
(HPLC). The structures of them were identified by 1H NMR.详细>