A Iow molecular weight heparin(LMWH)with average molecular weight of 5600was prepared from low anticoagulant activity heparin(LAAH). Its physicochemical parametersand anticoagulant activity were determined.

• 以低抗凝肝素为原料制备了平均分子量为5600的低分子肝素，测定了理化指标和抗凝效价。