Separation and purification process of total flavonoids from Scutelaria baicalensis / 中成药

AIM:To review the 10 kinds of macroporous resin's absorption of total flavnoids to screen out the one which could separate the Baicalin,Baicalein,Wogonoside,Wogonin simultaneously. METHODS: By HPLC,using the content of Baicalin,Baicalein,Wogonoside,wogonin as the marker,adopting a static adsorbtion in combination with dynamic state. RESULTS: The difference in adsorption and desorption among macroporous resins and adsorption condition arose from four kinds of flavonoids. CONCLUSION: At a comprehensive estimate SP-825 resin was regarded as the ideal for adsorption and desorption.