The determination of iron in seawater using catalytic cathodic stripping voltammetry
Abstract The sensitivity of the determination of iron in natural waters, including seawater, using cathodic stripping voltammetry (CSV) with adsorptive collection of complexes with 1‐nitroso‐2‐naphthol is greatly enhanced by catalytic reoxidation in the presence of hydrogen peroxide. The limit of de...
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crwiley:10.1002/elan.1140040113 2024-09-30T14:39:31+00:00 The determination of iron in seawater using catalytic cathodic stripping voltammetry Yokoi, Kunihiko van den Berg, Constant M. G. 1992 http://dx.doi.org/10.1002/elan.1140040113 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Felan.1140040113 https://onlinelibrary.wiley.com/doi/full/10.1002/elan.1140040113 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Electroanalysis volume 4, issue 1, page 65-69 ISSN 1040-0397 1521-4109 journal-article 1992 crwiley https://doi.org/10.1002/elan.1140040113 2024-09-17T04:44:58Z Abstract The sensitivity of the determination of iron in natural waters, including seawater, using cathodic stripping voltammetry (CSV) with adsorptive collection of complexes with 1‐nitroso‐2‐naphthol is greatly enhanced by catalytic reoxidation in the presence of hydrogen peroxide. The limit of detection is lowered to 0.16 nM Fe (using an adsorption time of 60 s) and further to 0.03 nM Fe by increasing the adsorption time to 10 min. Interference from an increase in the background current, brought about by catalysis of the hydrogen evolution, is overcome by addition of an anionic surfactant (sodium dodecyl sulfate (SDS)). Optimal conditions include a hydrogen peroxide concentration of 1.8 mM and 5 ppm SDS. Procedures to purify the reagents from contaminant levels of iron are described. The method is successfully applied to certified seawater and samples from the North Atlantic. Article in Journal/Newspaper North Atlantic Wiley Online Library Electroanalysis 4 1 65 69 |
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English |
description |
Abstract The sensitivity of the determination of iron in natural waters, including seawater, using cathodic stripping voltammetry (CSV) with adsorptive collection of complexes with 1‐nitroso‐2‐naphthol is greatly enhanced by catalytic reoxidation in the presence of hydrogen peroxide. The limit of detection is lowered to 0.16 nM Fe (using an adsorption time of 60 s) and further to 0.03 nM Fe by increasing the adsorption time to 10 min. Interference from an increase in the background current, brought about by catalysis of the hydrogen evolution, is overcome by addition of an anionic surfactant (sodium dodecyl sulfate (SDS)). Optimal conditions include a hydrogen peroxide concentration of 1.8 mM and 5 ppm SDS. Procedures to purify the reagents from contaminant levels of iron are described. The method is successfully applied to certified seawater and samples from the North Atlantic. |
format |
Article in Journal/Newspaper |
author |
Yokoi, Kunihiko van den Berg, Constant M. G. |
spellingShingle |
Yokoi, Kunihiko van den Berg, Constant M. G. The determination of iron in seawater using catalytic cathodic stripping voltammetry |
author_facet |
Yokoi, Kunihiko van den Berg, Constant M. G. |
author_sort |
Yokoi, Kunihiko |
title |
The determination of iron in seawater using catalytic cathodic stripping voltammetry |
title_short |
The determination of iron in seawater using catalytic cathodic stripping voltammetry |
title_full |
The determination of iron in seawater using catalytic cathodic stripping voltammetry |
title_fullStr |
The determination of iron in seawater using catalytic cathodic stripping voltammetry |
title_full_unstemmed |
The determination of iron in seawater using catalytic cathodic stripping voltammetry |
title_sort |
determination of iron in seawater using catalytic cathodic stripping voltammetry |
publisher |
Wiley |
publishDate |
1992 |
url |
http://dx.doi.org/10.1002/elan.1140040113 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Felan.1140040113 https://onlinelibrary.wiley.com/doi/full/10.1002/elan.1140040113 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Electroanalysis volume 4, issue 1, page 65-69 ISSN 1040-0397 1521-4109 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/elan.1140040113 |
container_title |
Electroanalysis |
container_volume |
4 |
container_issue |
1 |
container_start_page |
65 |
op_container_end_page |
69 |
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1811642112896139264 |