Polymer coated cation exchanger in ion chromatography: preparation, properties and applications |
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| Authors: | Gernot Huhn Georg Schwedt and Helmut Müller |
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| Institution: | (1) Institute of Analytical and Environmental Chemistry, Technical University of Merseburg, O-4200 Merseburg, Federal Republic of Germany;(2) Institute of Inorganic and Analytical Chemistry, Technical University of Clausthal, Paul-Ernst-Strasse 4, W-3392 Clausthal-Zellerfeld, Federal Republic of Germany |
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| Abstract: | Summary Stationary phases synthesized by polymer-coating of silica gel were investigated for the separation of cations by ion chromatography. Two kinds of polymer coating (polystyrene, polyglycidylmethacrylate) with sulphonic acid cation-exchange groups on various silica gels were prepared. These low capacity strong acid cation-exchangers were applied to determine alkali and alkaline earth metal ions in tap and mineral water, and grape juice samples. The IC-results were compared with those of AAS-measurement and of EDTA-titration of alkali metals and of alkaline earth metals, respectively. |
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