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A simple and sensitive method for the determination of iodide and iodate in raw, ultraviolet- and ozone-treated aquacultural seawater samples using ion chromatography coupled to an ultraviolet detector

Citation

Sanz Rodriguez, E and Setiawan, AN and Pope, S and Haddad, PR and Nesterenko, PN and Paull, B, A simple and sensitive method for the determination of iodide and iodate in raw, ultraviolet- and ozone-treated aquacultural seawater samples using ion chromatography coupled to an ultraviolet detector, Analytical Methods, 8, (28) pp. 5587-5595. ISSN 1759-9660 (2016) [Refereed Article]

Copyright Statement

The Royal Society of Chemistry 2016

DOI: doi:10.1039/c6ay01381c

Abstract

A new ion chromatographic method for the speciation of iodine in aquacultural seawater samples has been developed. This simple, isocratic, non-suppressed ion chromatographic method, which uses an electrolytically generated potassium hydroxide eluent with a high capacity anion exchange column (Dionex IonPac AS20, 250 4 mm ID, 7.5 μm), allows the direct injection of undiluted seawater samples, with detection based upon standard ultraviolet absorbance (226 nm). Using a sample injection volume of 125 μL, a method limit of detection for iodide of 9.45 nM in seawater was achieved, with an absolute detection limit of 0.15 ng. Speciation (iodide/iodate) was accomplished via off-line sample reduction using ascorbic acid (0.2 M) and HCl (6 M). The new method was applied to the study of iodine speciation in raw, ultraviolet- and ozone-treated aquacultural seawater samples.

Item Details

Item Type:Refereed Article
Keywords:ion chromatography, seawater, iodide, ozone
Research Division:Chemical Sciences
Research Group:Analytical Chemistry
Research Field:Separation Science
Objective Division:Expanding Knowledge
Objective Group:Expanding Knowledge
Objective Field:Expanding Knowledge in the Chemical Sciences
Author:Sanz Rodriguez, E (Dr Estrella Sanz Rodriguez)
Author:Haddad, PR (Professor Paul Haddad)
Author:Nesterenko, PN (Professor Pavel Nesterenko)
Author:Paull, B (Professor Brett Paull)
ID Code:110151
Year Published:2016
Funding Support:Australian Research Council (DP130101518)
Web of Science® Times Cited:1
Deposited By:Chemistry
Deposited On:2016-07-15
Last Modified:2017-03-14
Downloads:0

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