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由尖吻蝮蛇粗毒经DEAE－SephadexA50一步层桥分离制备符合质量标准的注射用去纤酶，每克粗毒得率600～800IU。以动态精氨酸酯酶活力测定作为中间监控手段更为有效、合理。
By the Agkistrodon acutus venom DEAE-SephadexA50 step by step bridge separation quality standards prepared for the preparation of defibrase, per gram crude toxification rate 600 ~ 800IU. Dynamic arginine esterase activity as an intermediate monitoring means more effective and reasonable.