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Trennung von anorganischen Schwefelanionen durch Ionenaustausch- und Ionenpaar-Chromatographie |
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| Authors: | M Weidenauer P Hoffmann und K H Lieser |
| Institution: | (1) Fachbereich Anorganische Chemie und Kernchemie der Technischen Hochschule Darmstadt, D-6100 Darmstadt, Bundesrepublik Deutschland |
| Abstract: | Summary Ion-exchange chromatography on a AS4A-column followed by a hollow fiber suppressor is suitable for the separation of sulphite, sulphate, thiosulphate and thiocyanate. Injecting a volume of 110  l, conductivity measurement yields detection limits between 15 g/l for sulphate and 75 g/l for sulphite.Ion-pair chromatography on a LiChrospher-100CH column using tetrabutylammonium ions as lipophilic reagent additionally makes possible the determination of dithionate, peroxodisulphate and tetrathionate, thus including seven anions in one run. Using a micro membrane suppressor and conductivity detection, detection limits between 10 g/l for sulphate and 70 g/l for tetrathionate are achieved with injection of 50 l samples.Herrn Prof. Dr. W. Fresenius aus Anla\ seines 75. Geburtstages gewidmet |
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