Preparative isolation and purification of hydroxyanthraquinones from Rheum officinale Baill by high-speed counter-current chromatography using pH-modulated stepwise elution
作者： Fuquan Yang , Tianyou Zhang , Guilian Tian , Haifeng Cao , Qinhui Liu
DOI: 10.1016/S0021-9673(99)00827-4
关键词:
摘要: Analytical and preparative high-speed counter-current chromatography was successfully used for the isolation purification of hydroxyanthraquinones from Rheum officinale Baill (Dahuang) using pH-modulated stepwise elution. Four major components including chrysophanol, emodin, physcion aloe-emodin were isolated each at over 98% purity.
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