Column : Shodex OHpak SB-802.5 HQ (8.0mmID*300mm) Eluent : (A); H2O/CH3CN=30/70 (B); H2O/CH3CN=70/30 (C); H2O/CH3CN=80/20 Flow rate : 0.5mL/min Detector : UV(280nm) Column temp. : 60℃