Journal article
Measurements of Copper in Seawater: The Use and Misuse of the Ion-Selective Electrode
Croatica Chemica Acta, Vol.70(1), pp.207-221
1997
Abstract
Conventional wisdom holds that the copper Ion Selective Electrode (CuISE) is unsuitable for measurements in seawater because of a wide range of effects including; interference by chloride ion, electrode drift, sub- and super-Nernstian response, contamination of the sample and, a lack of sensitivity. While all of these effects have undoubtedly been observed, there have also been reports indicating that the CuISE can give Nernstian response, at 29 mV/decade, down to very low concentrations of free copper ions in saline buffers. The application of experimental techniques for studying changes on membrane surfaces, as well as the use of »clean« techniques that have become standard for studying trace metals at very low concentrations, have enabled us to better understand the processes which lead to the problems listed above. In this paper, we review some of the the literature on the topic and suggest that it may indeed be possible to use the CuISE to provide reliable measurements of copper speciation in marine and estuarine waters.
Details
- Title
- Measurements of Copper in Seawater: The Use and Misuse of the Ion-Selective Electrode
- Authors
- D J Mackey (Author) - CSIRORoland De Marco (Author) - Curtin University of Technology
- Publication details
- Croatica Chemica Acta, Vol.70(1), pp.207-221
- Publisher
- Hrvatsko Kemijsko Drustvo
- Date published
- 1997
- ISSN
- 0011-1643
- Copyright note
- Copyright © 1997 The Author. This is an Open Access article distributed under the terms of the Creative Commons Attrribution Licence (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
- Organisation Unit
- University of the Sunshine Coast, Queensland; Office of the Deputy Vice-Chancellor (Research and Innovation)
- Language
- English
- Record Identifier
- 99449961102621
- Output Type
- Journal article
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