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Simultaneous ion-exclusion/cation-exchange chromatography of anions and cations in acid rain waters using a weakly acidic cation-exchange resin by elution with sulfosalicylic acid

Citation

Tanaka, K and Ohta, K and Haddad, PR and Fritz, J and Miyanaga, A and Hu, W and Hasebe, K, Simultaneous ion-exclusion/cation-exchange chromatography of anions and cations in acid rain waters using a weakly acidic cation-exchange resin by elution with sulfosalicylic acid, J Chromatogr A, 884, (1-2) pp. 167-174. ISSN 0021-9673 (2000) [Refereed Article]

DOI: doi:10.1016/S0021-9673(00)00202-8

Abstract

A simple, selective, and sensitive method for the simultaneous determination of anions (sulfate, nitrate, and chloride) and cations (sodium, ammonium, potassium, magnesium, and calcium) in acid rain waters was developed using ion-exclusion/cation-exchange chromatography with conductimetric detection. A weakly acidic cation-exchange resin column (Tosho TSKgel OA-PAK-A) and a sulfosalicylic acid-methanol-water eluent was used. With a mobile phase comprising 1.25 mM sulfosalicylic acid in methanol-water (7.5:92.5) at 1.2 ml/min, simultaneous separation and detection of the above anions and cations was achieved in about 30 min. Linear calibration plots of peak area versus concentration were obtained over the concentration ranges 0-1.0 mM for anions (R=0.9991) and 0-0.5 mM for cations (R=0.9994). Detection limits calculated at S/N=3 ranged from 4.2 to 14.8 ppb for the anions and from 2.4 to 12.1 ppb for the cations. The reproducibility of retention times was 0.14-0.15% relative standard deviation (RSD) for anions and 0.18-0.31% for cations, and reproducibility of chromatographic peak areas was 1.22-1.75% RSD for anions and 1.81-2.10% for cations. The method was applied successfully to the simultaneous determination of anions and cations in aerosols transported from mainland China to central Japan, as determined by a meteorological satellite data analyzer. Copyright (C) 2000 Elsevier Science B.V.

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:Tanaka, K (Dr Kazuhiko Tanaka)
Author:Haddad, PR (Professor Paul Haddad)
Author:Fritz, J (Professor Jim Fritz)
Author:Hu, W (Mr Wei Hu)
ID Code:19391
Year Published:2000
Web of Science® Times Cited:39
Deposited By:Chemistry
Deposited On:2000-08-01
Last Modified:2011-08-04
Downloads:0

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