Rough flavonoid was extracted from Patrinia Scabiosaefolia Fisch by 70% alcohol.The refined flavonoid was obtained by purifying the rough flavonoid with polyamide.

• 用70%25乙醇提取黄花败酱黄酮类化合物,得到粗黄酮,经聚酰胺纯化,得到精制黄酮。