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Analysis of inorganic anions by electrostatic ion chromatography using zwitterionic/cationic mixed micelles as the stationary phase

Citation

Hu, W and Haddad, PR and Hasebe, K and Cook, HC and Fritz, J, Analysis of inorganic anions by electrostatic ion chromatography using zwitterionic/cationic mixed micelles as the stationary phase, Fresenius' Journal of Analytical Chemistry, 367, (7) pp. 641-644. ISSN 0937-0633 (2000) [Refereed Article]


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The original publication is available at http://www.springerlink.com

Official URL: http://www.springerlink.com

DOI: doi:10.1007/s002160000436

Abstract

The inability to separate fluoride, phosphate and sulfate by electrostatic ion chromatography (EIC) was overcome by using an ODS silica column coated with mixed zwitterionic-cationic surfactants as the stationary phase. The best results were obtained using the zwitterionic surfactant, 3-(N,N-dimethylmyristylammonium)-propanesulfonate (C19H41NO3S), and the cationic surfactant, myristyltrimethylammonium, CH3(CH2)13N+(CH3)3, in a 10:1 molar ratio in the column coating solution. With a dilute solution of sodium tetraborate as the eluent the model analyte anions were completely separated in the following elution order: F–, HPO4 2–, SO4 2–, Cl–, NO2 –, Br–, NO3 –. The very early elution of phosphate and sulfate is most unusual and is unique to this system. Detection limits better than 1.1 × 10–4 mM and linear calibration plots up to 7.0 mM were obtained with a suppressed conductivity system.

Item Details

Item Type:Refereed Article
Research Division:Chemical Sciences
Research Group:Analytical Chemistry
Research Field:Separation Science
Objective Division:Expanding Knowledge
Objective Group:Expanding Knowledge
Objective Field:Expanding Knowledge in the Chemical Sciences
Author:Hu, W (Mr Wei Hu)
Author:Haddad, PR (Professor Paul Haddad)
Author:Cook, HC (Ms Cook)
Author:Fritz, J (Professor Jim Fritz)
ID Code:19437
Year Published:2000
Web of Science® Times Cited:6
Deposited By:Chemistry
Deposited On:2000-08-01
Last Modified:2010-02-20
Downloads:0

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