[Evaluation of crude heparin and commercial preparation of Polish production].

Contents of the solid residue, ash, nitrogen, hexosamines, uronic acids, carboxyl groups, and O- and N-sulphates, as well as mean molecular weights and anticoagulant activities of the crude heparin and the commercial product were compared. The study has confirmed the literature data concerning dependence of biological activity of heparin preparations upon their molecular weight.