Library Open Repository

Simultaneous ion-exclusion chromatography and cation-exchange chromatography of anions and cations in environmental water samples on a weakly acidic cation-exchange resin by elution with pyridine-2,6-dicarboxylic acid

Downloads

Downloads per month over past year

Ding, MY and Tanaka, K and Hu, W and Hasebe, K and Haddad, PR (2001) Simultaneous ion-exclusion chromatography and cation-exchange chromatography of anions and cations in environmental water samples on a weakly acidic cation-exchange resin by elution with pyridine-2,6-dicarboxylic acid. Analyst, 126 (5). pp. 567-570. ISSN 0003-2654

[img] PDF
252.pdf.pdf | Request a copy
Full text restricted
Available under University of Tasmania Standard License.

Abstract

A non-suppressed conductivity detection ion chromatographic method using a weakly acidic cation-exchange column (Tosoh TSKgel OApak-A) was developed for the simultaneous separation and determination of common inorganic anions (Cl–, NO3– and SO42-) and cations (Na+, NH4+, K+, Mg2+ and Ca2+). A satisfactory separation of these anions and cations on the weakly acidic cation-exchange column was achieved in 25 min by elution with a mixture of 1.6 mmol L–1 pyridine-2,6-dicarboxylic acid and 8.0 mmol L–1 18-crown-6 at flow rate of 1.0 mL min–1. On this weakly acidic cation-exchange resin, anions were retained by an ion-exclusion mechanism and cations by a cation-exchange mechanism. The linear range of the peak area calibration curves for all analytes were up to two orders of magnitude. The detection limits calculated at S/N = 3 ranged from 0.25 to 1.9 µmol L–1 for anions and cations. The ion-exclusion chromatography–cation-exchange chromatography method developed in this work was successfully applied to the simultaneous determination of major inorganic anions and cations in rainwater, tap water and snow water samples.

Item Type: Article
Journal or Publication Title: Analyst
Page Range: pp. 567-570
ISSN: 0003-2654
Identification Number - DOI: 10.1039/b100104n
Additional Information: Copyright © 2001 The Royal Society of Chemistry
Date Deposited: 18 Nov 2008 01:05
Last Modified: 18 Nov 2014 03:52
URI: http://eprints.utas.edu.au/id/eprint/7880
Item Statistics: View statistics for this item

Repository Staff Only (login required)

Item Control Page Item Control Page