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Abstract: A recycling counter-current chromatographic system was first set up with a high-speed counter-current chromatography instrument coupled with a column switching valve. This system was first successfully applied to the preparative separation of epimers, gambogic acid and epigambogic acid from Garcinia hanburyi using n-hexane–methanol–water (5:4:1, v/v/v) as the two-phase solvent system. As a result, 28.2 mg gambogic acid and 18.4 mg epigambogic acid were separated from 50 mg of mixture. Their purities were both above 97% as determined by HPLC. The chemical structures were then identified by their H-NMR and C-NMR spectra.
上海同田生物技术:运用高速逆流色谱法从仙茅中分离仙茅甙和仙茅甙乙
上海同田生物技术:运用高速逆流色谱和ELSD联用技术从Adenophora tetraphlla(南沙参)根茎中分离化学成分
上海同田生物技术:高速逆流色谱法分离制备丹酚酸B
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