Columns : Shodex OHpak SB-G (6.0mmID*50mm) + SB-804 HQ + SB-803 HQ (8.0mmID*300mm each) Eluent : 0.5M Acetic acid + 0.5M Sodium acetate aq. Flow rate : 1.0mL/min Detector : Shodex RI Column temp. : Room temp.