Large‐scale separation of alkaloids from Corydalis decumbens by pH‐zone‐refining centrifugal partition chromatography and their anticomplement activity

Centrifugal partition chromatography in the pH‐zone‐refining mode was successfully applied to the separation of alkaloids from the crude extract of Corydalis decumbens. The experiment was performed with a two‐phase solvent system composed of petroleum ether‐ethyl acetate‐ethanol‐water (5:5:3:7, v/v/...

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