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High-speed simultaneous ion-exclusion/cation-exchange chromatography of anions and cations on a weakly acidic cation-exchange resin column

Citation

Mori, M and Tanaka, K and Helaleh, MIH and Xu, Q and Ikedo, M and Ogura, Y and Sato, S and Hu, W and Hasebe, K and Haddad, PR, High-speed simultaneous ion-exclusion/cation-exchange chromatography of anions and cations on a weakly acidic cation-exchange resin column, Journal of Chromatography A, 997, (1-2) pp. 219-224. ISSN 0021-9673 (2003) [Refereed Article]


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DOI: doi:10.1016/S0021-9673(03)00631-9

Abstract

The simultaneous ion-exclusion/cation-exchange separation column packed with a polymethacrylate-based weakly acidic cation-exchange resin of 3 μm particle size was used to achieve the simultaneous high-speed separation of anions and cations (Cl−, NO3−, SO42−, Na+, K+, NH4+, Ca2+ and Mg2+) commonly found in environmental samples. The high-speed simultaneous separation is based on a combination of the ion-exclusion mechanism for the anions and the cation-exchange mechanism for cations. The complete separation of the anions and cations was achieved in 5 min by elution with 15 mM tartaric acid–2.5 mM 18-crown-6 at a flow-rate of 1.5 ml/min. Detection limits at S/N=3 ranged from 0.36 to 0.68 μM for anions and 0.63–0.99 μM for cations. This method has been applied to the simultaneous determination of anions and cations in several environmental waters with satisfactory results.

Item Details

Item Type:Refereed Article
Keywords:Tartaric acid; Inorganic anions; Inorganic cations
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:Haddad, PR (Professor Paul Haddad)
ID Code:27344
Year Published:2003
Web of Science® Times Cited:43
Deposited By:Chemistry
Deposited On:2003-08-01
Last Modified:2010-02-02
Downloads:1 View Download Statistics

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