The performance of differential pulse stripping voltammetry at micro-liquid-liquid interface arrays
Microporous silicon membranes were recently introduced to create hexagonally-patterned arrays ofmicro-scale interfaces between two immiscible electrolyte solutions (lITIES). In this report we presenta simulation study of the application of differential pulse stripping voltammetry (DPSV) using thesel...
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| Format: | Journal Article |
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Elsevier
2010
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| Online Access: | http://hdl.handle.net/20.500.11937/43212 |
| _version_ | 1848756627950272512 |
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| author | Strutwolf, J. Scanlon, M. Arrigan, Damien |
| author_facet | Strutwolf, J. Scanlon, M. Arrigan, Damien |
| author_sort | Strutwolf, J. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Microporous silicon membranes were recently introduced to create hexagonally-patterned arrays ofmicro-scale interfaces between two immiscible electrolyte solutions (lITIES). In this report we presenta simulation study of the application of differential pulse stripping voltammetry (DPSV) using theselITIES arrays for ion sensing. Simulations showed that the stripping current for ion detection wasenhanced by use of relatively deep pores (i.e. a low pore aspect ratio) and a viscous organic phase. These factors decrease the speed of escape of the pre-concentrated ion from the organic side of the ITIES. The stripping current initially increased steeply with pre-concentration time but eventually reached a plateau. Experiments performed using a lITIES array with micropores of radius 26 lm, depth of 100 lm and with a gelified organic phase demonstrated the saturation of the stripping peak with increasing pre-concentration time for the DPSV detection of tetraethylammonium ion. The reasons for the saturations are discussed in terms of diffusion coefficients and depth of the micropores. |
| first_indexed | 2025-11-14T09:15:13Z |
| format | Journal Article |
| id | curtin-20.500.11937-43212 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T09:15:13Z |
| publishDate | 2010 |
| publisher | Elsevier |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-432122019-02-19T05:35:22Z The performance of differential pulse stripping voltammetry at micro-liquid-liquid interface arrays Strutwolf, J. Scanlon, M. Arrigan, Damien Ion transfer Micropore Computational electrochemistry Array ITIES Pulsed voltammetry Microporous silicon membranes were recently introduced to create hexagonally-patterned arrays ofmicro-scale interfaces between two immiscible electrolyte solutions (lITIES). In this report we presenta simulation study of the application of differential pulse stripping voltammetry (DPSV) using theselITIES arrays for ion sensing. Simulations showed that the stripping current for ion detection wasenhanced by use of relatively deep pores (i.e. a low pore aspect ratio) and a viscous organic phase. These factors decrease the speed of escape of the pre-concentrated ion from the organic side of the ITIES. The stripping current initially increased steeply with pre-concentration time but eventually reached a plateau. Experiments performed using a lITIES array with micropores of radius 26 lm, depth of 100 lm and with a gelified organic phase demonstrated the saturation of the stripping peak with increasing pre-concentration time for the DPSV detection of tetraethylammonium ion. The reasons for the saturations are discussed in terms of diffusion coefficients and depth of the micropores. 2010 Journal Article http://hdl.handle.net/20.500.11937/43212 10.1016/j.jelechem.2010.01.020 Elsevier fulltext |
| spellingShingle | Ion transfer Micropore Computational electrochemistry Array ITIES Pulsed voltammetry Strutwolf, J. Scanlon, M. Arrigan, Damien The performance of differential pulse stripping voltammetry at micro-liquid-liquid interface arrays |
| title | The performance of differential pulse stripping voltammetry at micro-liquid-liquid interface arrays |
| title_full | The performance of differential pulse stripping voltammetry at micro-liquid-liquid interface arrays |
| title_fullStr | The performance of differential pulse stripping voltammetry at micro-liquid-liquid interface arrays |
| title_full_unstemmed | The performance of differential pulse stripping voltammetry at micro-liquid-liquid interface arrays |
| title_short | The performance of differential pulse stripping voltammetry at micro-liquid-liquid interface arrays |
| title_sort | performance of differential pulse stripping voltammetry at micro-liquid-liquid interface arrays |
| topic | Ion transfer Micropore Computational electrochemistry Array ITIES Pulsed voltammetry |
| url | http://hdl.handle.net/20.500.11937/43212 |