Determination of zwitterionic and cationic surfactants by high-performance liquid chromatography with chemiluminescenscent nitrogen detection |
| |
Authors: | Harrison Christopher R Lucy Charles A |
| |
Institution: | Department of Chemistry, University of Alberta, Edmonton, Canada. |
| |
Abstract: | The use of chemiluminescent nitrogen specific detection (CLND) combined with an HPLC separation allows for the identification and quantification of cationic and zwitterionic surfactants. The CLND provides equimolar responses, based on the amount of nitrogen within any compound. This allows for the detection of any nitrogen containing surfactant. Reversed-phase separation methods using cyano columns are developed for cationic and zwitterionic (sulfobetaine) surfactant mixtures. The limits of detection for these surfactants are in the single micromolar range (1 ng N). A linear response was obtained (R2=0.9981) between 50 microM and 5 mM. The methodology was then applied to the determination of an industrial zwitterionic surfactant, Rewoteric AM CAS U coco(amidopropyl)hydroxyldimethylsulfobetaine]. |
| |
Keywords: | |
本文献已被 PubMed 等数据库收录! |
|