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Ion-exchange chromatography of mono- and divalent cations in natural waters on a weak acid anion-exclusion column

Citation

Tanaka, K and Ohta, K and Haddad, PR and Fritz, JS, Ion-exchange chromatography of mono- and divalent cations in natural waters on a weak acid anion-exclusion column, Journal of Chromatography A, 804, (1-2) pp. 179-186. ISSN 0021-9673 (1998) [Refereed Article]

DOI: doi:10.1016/S0021-9673(98)00031-4

Abstract

Ion-exchange chromatography with indirect conductimetric detection for the simultaneous determination of mono- and divalent cations is investigated using an anion-exclusion chromatographic column packed with polymethacrylate- based weakly acidic cation-exchange resin in the H+ form (Tosoh TSKgel OA- PAK-A, 300 mm x 7.8 mm I.D.). An eluent comprising a strong acid, a weak organic acid, methanol and water is used. Using 0.75 mM sulfuric acid, 2 mM tartaric acid, 7.5% (v/v) methanol in water as eluent, the monovalent cations (Na+, NH4 +, and K+) and divalent cations (Mg2+ and Ca2+) were separated simultaneously by a cation-exchange mechanism in about 25 min. The application of this method to the analysis of several natural waters including rain, river, lake, underground and forest soil waters for estimating acid rain effects on the natural and urban environments is presented.

Item Details

Item Type:Refereed Article
Research Division:Chemical Sciences
Research Group:Analytical Chemistry
Research Field:Instrumental Methods (excl. Immunological and Bioassay Methods)
Objective Division:Expanding Knowledge
Objective Group:Expanding Knowledge
Objective Field:Expanding Knowledge in the Chemical Sciences
Author:Tanaka, K (Dr Kazuhiko Tanaka)
Author:Haddad, PR (Professor Paul Haddad)
ID Code:14152
Year Published:1998
Web of Science® Times Cited:9
Deposited By:Chemistry
Deposited On:1998-08-01
Last Modified:2011-08-09
Downloads:0

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