Polyoxyethylene(10) cetyl ether (Brij^® 56) which is a nonionic surfactant was analyzed using Asahipak GF-310 HQ (an Aqueous/Organic (multi-solvent use) SEC column). The component of which polyethylene chain is longer elutes faster.


Sample : 20 μL
Brij^® 56 (Polyoxyethylene(10) cetyl ether) 1 %

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