Microchemical Analysis of Cationic Surfactants

A mini-column, Asahipak GF-310 HQ (4.6mmID*100mm)used for microchemical analysis.


Sample : (a); 5micro-M each, (b); 0.5micro-M each
1. DTMA⁺, n-Dodecyltrimethylammonium ion
2. CTMA⁺, Cetyltrimethylammonium ion
3. TDDBA⁺, Tetradecyldimethylbenzylammonium ion
4. TMSA⁺, Trimethylstearylammonium ion

Column       : Shodex Asahipak GF-310 HQ (4.6mmID x 100mm)
Eluent       : 0.4mM 4,4'-Dipyridyl-0.8mM HCl(CH3CN 27%)
Flow rate    : 0.6mL/min
Detector     : Suppressed conductivity
Column temp. : 40deg-C