Column : Shodex Asahipak GS-320 7E (7.5mmID*250mm) Eluent : 0.1M Sodium phosphate buffer(pH7.0) + 0.3M NaCl Flow rate : 1.0mL/min Detector : ECD(800mV VS Ag/AgCl) Column temp. : 25deg-CCourtesy of Dr. Iriyama, The Jikei University, School of Medicine