Benzalkonium chloride which is one of the cationic surfactants was analyzed using OHpak SB-802.5 HQ (a column for aqueous SEC (GFC)).
Sample: 50μL
Benzalkonium chloride 0.1%
Column : Shodex OHpak SB-802.5 HQ (8.0mmI.D. x 300mm) Eluent : 50mM NaCl aq./CH3CN=65/35 Flow rate : 1.0mL/min Detector : UV(254nm) Column temp. : 60°C
