Abstract
OBJECTIVE To investigate the purification conditions of Huangqin Decoction by macroporous absorption resins.METHODS With baicalin,paeoniforin and glycyrrhizic acid as index,five different types of macroporous absorption resins were used to purify Huangqin Decoction.And the optimization of the purification technique was performed by orthogonal test and single factor test.RESULTS AB-8 type macroporous absorption resin was selected.The optimal purification conditions were:the ratio of resin to raw material was 2,8 volumes of water to elute the resin and 6 volumes of 70% ethanol as elution solvent.CONCLUSION The technique can be used to purify Huangqin Decoction effectively.
Key words
Huangqin decoction /
purification technique /
macroporous absorption resins
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CHEN Jin-zhen;LV Gui-yun;LUO Xio-min;YE Lei.
Purification Techniques of Huangqin Decoction by Macroporous Absorption Resin [J]. Chinese Pharmaceutical Journal, 2008, 43(10): 742-745
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