Chromatographie Ionique avec Colonne de Suppression: Comportement et Dosage du Sulfite

Authors

  • Valli Kordorouba Département de Chimie minérale, analytique et appliquée Université de Genève Quai Ernest Ansermet 30 CH-1211 Genève 4
  • Michel Pelletier Département de Chimie minérale, analytique et appliquée Université de Genève Quai Ernest Ansermet 30 CH-1211 Genève 4

DOI:

https://doi.org/10.2533/chimia.1988.381

Abstract

A major problem in the sulfite determination by anion chromatography is the oxidation of sulfite by atmospheric oxygen. Ways to prevent this oxidation have been investigated and the results of our study reveal that the sulfite oxidation by air can be arrested effectively by adding isopropanol to both eluent and sample. Under these conditions and provided the pH of the eluent < 7.0, one can measure the free sulfite concentration in the sample.

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Published

1988-11-30

Issue

Vol. 42 No. 11 (1988): Forschung/Research

Section

Articles

License

Copyright (c) 1988 Valli Kordorouba

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

How to Cite

[1]
V. Kordorouba, M. Pelletier, Chimia 1988, 42, 381, DOI: 10.2533/chimia.1988.381.