| EPSRC Reference: |
GR/M12247/01 |
| Title: |
ELECTROANALYSIS VIA LASER-ABLATION VOLTAMMETRY |
| Principal Investigator: |
Compton, Professor R |
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| Department: |
Oxford Chemistry |
| Organisation: |
University of Oxford |
| Scheme: |
Standard Research (Pre-FEC) |
| Starts: |
23 October 1998 |
Ends: |
22 October 2000 |
Value (£): |
123,769
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| No relevance to Underpinning Sectors |
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Summary on Grant Application Form |
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The project will develop laser-ablation voltammetry (LAV) as a method to permit the use of solid electrodes for voltammetric analysis in otherwise passivating media such as foodstuffs, effluents etc. A solid electrode surface will be renewed every tenth second or so by ablation using pulses from a Q-switched Nd;YAG laser and slow scan current-potential measurements made simultaneously should indicate the concentration of the target species via limiting currents generated through concomitant refreshment of the diffusion layer. Additionally a novel transient experiment will be developed to permit rapid scan voltammograms to be recorded at fixed times (millisecond to second timescales) after the single laser pulses.The analytical-LAV experiment will be optimised and applied to a variety of targets which are either intrinsically passivating (most notably ascorbic acid and glucose but also methanol, ethanol CO2 and dyestuffs) or to nominally clean redox couples in dirty or complex media where surface active species contaminate and block the electrode surface.
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Key Findings |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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Potential use in non-academic contexts |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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Impacts |
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| Description |
This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk |
| Summary |
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| Date Materialised |
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Sectors submitted by the Researcher |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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| Project URL: |
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| Further Information: |
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| Organisation Website: |
http://www.ox.ac.uk |