Determination of chlorate at low mu g/1 levels by ion-chromatography with postcolumn reaction
von Gunten, U.; Nowack, B.
1999

Abstract

A new method for the determination of low concentrations of chlorate in natural waters is described. Chlorate is analyzed by ion-chromatography followed by an osmate-catalyzed postcolumn reaction of chlorate with iodide and UV-detection of triiodide. The new osmate catalysis allows to carry out the oxidation of iodide by chlorate at pH 3 instead of 6 M HCl for the uncatalyzed reaction. A detection limit of 5 nM (0.4 mu g/l) chlorate is achieved. The method also allows the simultaneous determination of chlorite, bromate, and nitrite at the low mu g/l level. (C) 1999 Elsevier Science B.V. All rights reserved.

Details

Title Determination of chlorate at low mu g/1 levels by ion-chromatography with postcolumn reaction
Author(s) von Gunten, U. ; Nowack, B.
Published in Journal Of Chromatography A
Volume 849
Pages 209-215
Date 1999
Keywords
DOI https://doi.org/10.1016/S0021-9673(99)00564-6
Other identifier(s) View record in Web of Science
Laboratories LTQE
Record Appears in Scientific production and competences > ENAC - School of Architecture, Civil and Environmental Engineering > IIE - Environmental Engineering Institute > LTQE - Laboratory for Water Quality and Treatment
Peer-reviewed publications
Work outside EPFL
Journal Articles
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Record creation date 2011-07-01