GS-320 7E is an old type of GS-320 HQ.
Column : Shodex Asahipak GS-320 7E (7.6mmID*250mm)
Eluent : 0.5M Citric buffer + 0.1M KCl (pH7.0)
Flow rate : 1.0mL/min
Detector : ECD(800mV vs Ag/AgCl)
Column temp. : 25°C
Courtesy of Dr. Iriyama, The Jikei University, School of Medicine