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Simple procedure for the fabrication of silver/silver chloride potentiometric electrodes with micrometre and smaller dimensions: application to scanning electrochemical microscopy
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UNSPECIFIED (2000) Simple procedure for the fabrication of silver/silver chloride potentiometric electrodes with micrometre and smaller dimensions: application to scanning electrochemical microscopy. ANALYST, 125 (5). pp. 889-893. ISSN 0003-2654
Full text not available from this repository.Abstract
A simple method is described for the fabrication of silver/silver chloride electrodes with micrometre and smaller dimensions. The electrodes are constructed by etching a silver wire to a fine point and then coating with an electrophoretically-deposited paint, which is subsequently heat-cured to insulate all but the very end of the tip. These electrodes have effective radii in the 50 nm to 1 mu m range (assuming a hemispherical geometry), as determined by steady-state linear sweep voltammetry. After depositing AgCl on the Ag surface, by anodic oxidation in aqueous KCl solution, the electrodes exhibit Nernstian behaviour to chloride ions, in potentiometric measurements, over a concentration range of 10(-4) to at least 10(-1) mol dm(-3). These electrodes are shown to be particularly promising as scanning electrochemical microscopy (SECM) probes for imaging local chloride concentrations.
| Item Type: | Journal Article |
|---|---|
| Subjects: | Q Science > QD Chemistry |
| Journal or Publication Title: | ANALYST |
| Publisher: | ROYAL SOC CHEMISTRY |
| ISSN: | 0003-2654 |
| Date: | 2000 |
| Volume: | 125 |
| Number: | 5 |
| Number of Pages: | 5 |
| Page Range: | pp. 889-893 |
| Publication Status: | Published |
| URI: | http://wrap.warwick.ac.uk/id/eprint/13412 |
Data sourced from Thomson Reuters' Web of Knowledge
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