Benzalkonium Chloride (2) (GS-310 7G)

Addition of approximately 50 mM of sodium nitrate or sodium chloride to an eluent and keeping in check effect of the electric charge of the sample make it possible to analyze anionic and cationic surfactants using Asahipak GS-310 7G ( a multisolvent GPC column ).
GS-310 7G is an old type of GF-310 HQ.


Sample: Benzalkonium chloride

Column       : Shodex Asahipak GS-310 7G (7.5mmID*500mm)
Eluent       : 50mM NaNO3/CH3CN=50/50
Flow rate    : 1.0mL/min
Detector     : UV(254nm)
Column temp. : 40deg-C