Column : Shodex AFpak APD-894 (8.0mmID*50mm) Eluent : (A); 0.02M Tris-HCl buffer(pH5.0) (B); (A) + 2.0M KCl Step gradient: (A) to (B) Flow rate : 1.0mL/min Detector : UV(280nm) Column temp. : Room temp.