Phenol Formaldehyde Resin (Comparison of KD-800 and SB-800 HQ)
Phenol formaldehyde resin was analyzed using OHpak
SB-800 HQ columns and GPC
KD-800 columns.

Sample :
Phenol formaldehyde resin
Columns : Shodex GPC KD-804 + KD-802.5, OHpak SB-804 HQ + SB-802.5 HQ (8.0mmID*300mm each)
Eluent : 5mM LiBr in DMF
Flow rate : 0.5mL/min
Detector : Shodex RI
Column temp. : 40°C