Column : Shodex HIC PH-814 (8.0mmID*75mm) Eluent : (A); (B) + 1.8M Ammonium sulfate (B); 0.1M Phosphate buffer(pH3.0) Linear gradient: 0min to 60min, (A) to (B) Flow rate : 1.0mL/min Detector : UV(280nm) Column temp. : 25deg-C