Column : Shodex ODSpak F-411 (4.6mmID*150mm) Eluent : 0.1mM Imidazol buffer(pH7.0,adjusted by nitrate)/CH3CN=1/5 Reagent : [1mM *TCPO in Ethyl acetate]/[0.15M H2O2(30% aq.) in CH3CN]=25/75 Flow rate : (Eluent); 0.5mL/min, (Reagent); 2.0mL/min Detector : CLD Column temp. : 30deg-C*TCPO : Bis(2,4,6-trichlorophenyl) oxalate