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Coulometrische Titration mit Gasdiffusionstrennschritt

Coulometric titration with membrane separation by gas diffusion

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  • Electrometric Analyses
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Summary

Coulometric titrations of ammonia and sulphur dioxide can be implemented with an improved selectivity in a measuring cell combining a batch type titration cell with a gas diffusion separator. The supporting electrolyte is propelled through the coulometric titration cell and the acceptor side of the membrane separator by means of a magnetic centrifugal pump. The sample solution flows through the donor side of the membrane separator. Acceptor and donor side are separated by a microporous PTFE-membrane. The measuring cell assembly allows both selectivity enhanced coulometric titrations with enrichment of the sample substance to be determined and the continuous coulometric detection of volatile species.

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Author information

Authors and Affiliations

  1. Biotechnikum der Martin-Luther-Universität Halle, Weinbergweg 16A, DDR-4020, Halle, Deutsche Demokratische Republik

    U. Spohn

  2. Sektion Chemie der Martin-Luther-Universität Halle, Weinbergweg 16A, DDR-4020, Halle, Deutsche Demokratische Republik

    M. Hahn & H. Matschiner

  3. Sektion Chemie der Wilhelm-Pieck-Universität Rostock, Buchbinderstrasse 9, DDR-2500, Rostock, Deutsche Demokratische Republik

    G. Ehlers & H. Berge

Authors
  1. U. Spohn
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  2. M. Hahn
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  3. H. Matschiner
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  4. G. Ehlers
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  5. H. Berge
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Additional information

Herrn Prof Dr. R. Neeb zum 60. Geburtstag gewidmet

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Spohn, U., Hahn, M., Matschiner, H. et al. Coulometrische Titration mit Gasdiffusionstrennschritt. Z. Anal. Chem. 332, 849–854 (1989). https://doi.org/10.1007/BF00635736

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  • DOI: https://doi.org/10.1007/BF00635736

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