Crude alkaloids are leached out from the fruit of Macleaya Cortada in acidified water and are then absorbed by cationic exchange resin.

• 采用酸水浸提法，提取出总生物碱的粗提物，再用阳离子交换树脂吸附总碱，然后在索氏提取器中，用混合有机溶剂提取吸附了总碱的树脂。