Human chorionoc gonadotrophin is separated and purified from the urine of pregnant wo-men by kaolin adsorption, ammonium acetate extraction and DEAE-cellulose chromatographiccolumn.

• 本文用高岭土吸附、醋酸铵抽提、DEAE-纤维素柱层析,从孕妇尿中分离纯化人绒毛膜促性腺激素。