The fibrinolytic principle was obtained by twice DEAE-Sephadex A-50 column chromatography and Sephadex G-100 gel filtration from the venom of Agkistrodon halys Pallas.

• 用二乙氨基乙基葡聚糖A-50两次柱层析及葡聚糖凝胶过滤,从浙江产蝮蛇毒中得到一个纤溶组份。