Polyoxyethylene Cetyl Ether

Polyoxyethylene cetyl ether(Brij^® 56) which is a nonionic surfactant was analyzed using Asahipak GF-310 HQ ( a multisolvent GPC column ). The component of which polyethylene chain is longer elutes faster.


Sample : 1%, 20micro-L
Brij^®56, Polyoxyethylene cetyl ether

Column       : Shodex Asahipak GF-310 HQ (7.5mmID*300mm)
Eluent       : CH3CN/H2O=60/40
Flow rate    : 0.6mL/min 
Detector     : Shodex RI
Column temp. : 40deg-C