Selection of Column (2) (Sodium Polyacrylate)

Calibration curves of Asahipak GF-7M HQ(packed with poly(vinyl alcohol)) and OHpak SB-806M HQ (packed with poly(hydroxy methacrylate)) are compared using a hydrophilic polymer standerd, sodium polyacrylate. The comparison shows that the calibration curve of Asahipak GF-7M HQ is more linear than that of OHpak SB-806M HQ.


Sample : Sodium polyacrylate standard

Columns      : Shodex Asahipak GF-7M HQ (7.5mmID*300mm), OHpak SB-806M HQ (8.0mmID*300mm)
Eluent       : 50mM Na2HPO4 aq./CH3CN=90/10
Flow rate    : 0.6mL/min
Detector     : Shodex RI
Column temp. : 40deg-C