Thin layer coulometric determination of nitrate in fresh waters
A nitrate ion-selective electrode (ISE) employing a permeable tubular membrane impregnated with a conventional ISE cocktail has been used successfully in the coulometric analysis of nitrate in fresh waters. The liquid ISE membrane comprising a nitrate ionophore [tridodecylmethylammonium nitrate (TDM...
| Main Authors: | , , , |
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| Format: | Journal Article |
| Published: |
Elsevier
2012
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| Online Access: | http://hdl.handle.net/20.500.11937/26104 |
| _version_ | 1848751889852661760 |
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| author | Sohail, M. De Marco, Roland Lamb, K. Bakker, E. |
| author_facet | Sohail, M. De Marco, Roland Lamb, K. Bakker, E. |
| author_sort | Sohail, M. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | A nitrate ion-selective electrode (ISE) employing a permeable tubular membrane impregnated with a conventional ISE cocktail has been used successfully in the coulometric analysis of nitrate in fresh waters. The liquid ISE membrane comprising a nitrate ionophore [tridodecylmethylammonium nitrate (TDMAN)], lipophilic electrolyte [tetradodecyl-ammoniumtetrakis(4-chlorophenyl)borate (ETH 500)] and plasticizer [bis(3-ethyl-hexyl)sebacate (DOS)] was supported on a porous polypropylene tube. Coulometric analysis with the tubular membrane ISE showed that nitrate could be detected in the range 10-100µM with a precision of 2.3% relative standard deviation (RSD), limit of detection of 1.1µM and relative accuracy of 4.4% compared to a certified reference material (CRM) Lake sample. |
| first_indexed | 2025-11-14T07:59:54Z |
| format | Journal Article |
| id | curtin-20.500.11937-26104 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T07:59:54Z |
| publishDate | 2012 |
| publisher | Elsevier |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-261042017-09-13T15:23:05Z Thin layer coulometric determination of nitrate in fresh waters Sohail, M. De Marco, Roland Lamb, K. Bakker, E. A nitrate ion-selective electrode (ISE) employing a permeable tubular membrane impregnated with a conventional ISE cocktail has been used successfully in the coulometric analysis of nitrate in fresh waters. The liquid ISE membrane comprising a nitrate ionophore [tridodecylmethylammonium nitrate (TDMAN)], lipophilic electrolyte [tetradodecyl-ammoniumtetrakis(4-chlorophenyl)borate (ETH 500)] and plasticizer [bis(3-ethyl-hexyl)sebacate (DOS)] was supported on a porous polypropylene tube. Coulometric analysis with the tubular membrane ISE showed that nitrate could be detected in the range 10-100µM with a precision of 2.3% relative standard deviation (RSD), limit of detection of 1.1µM and relative accuracy of 4.4% compared to a certified reference material (CRM) Lake sample. 2012 Journal Article http://hdl.handle.net/20.500.11937/26104 10.1016/j.aca.2012.07.026 Elsevier restricted |
| spellingShingle | Sohail, M. De Marco, Roland Lamb, K. Bakker, E. Thin layer coulometric determination of nitrate in fresh waters |
| title | Thin layer coulometric determination of nitrate in fresh waters |
| title_full | Thin layer coulometric determination of nitrate in fresh waters |
| title_fullStr | Thin layer coulometric determination of nitrate in fresh waters |
| title_full_unstemmed | Thin layer coulometric determination of nitrate in fresh waters |
| title_short | Thin layer coulometric determination of nitrate in fresh waters |
| title_sort | thin layer coulometric determination of nitrate in fresh waters |
| url | http://hdl.handle.net/20.500.11937/26104 |