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Self-assembled monolayers of 2-mercaptobenzimidazole on gold: stripping voltammetric determination of Hg(II)
- Source :
- Electrochemistry Communications, Vol 2, Iss 4, Pp 226-229 (2000)
- Publication Year :
- 2000
- Publisher :
- Elsevier, 2000.
-
Abstract
- Monomolecular level modification of electrode surfaces through a self-assembly approach is, of late, gaining importance in view of its many functional applications in areas such as molecular electronics, molecular recognition, electron transfer studies and electroanalysis. Self-assembled monolayer (SAM) modification of a gold electrode with 2-mercaptobenzimidazole (MBI) has been achieved. On this modified electrode, anodic stripping voltammetric determination of mercury at ppm/sub-ppm level concentrations has been successfully attempted. Pre-concentration, prior to stripping, has been effected through a non-electrolytic process involving chemical interactions between MBI and Hg(II). The results are described and discussed with a plausible scheme. Keywords: 2-Mercaptobenzimidazole, Self-assembled monolayer, Mercury(II), Anodic stripping voltammetry
Details
- Language :
- English
- ISSN :
- 13882481
- Volume :
- 2
- Issue :
- 4
- Database :
- OpenAIRE
- Journal :
- Electrochemistry Communications
- Accession number :
- edsair.doi.dedup.....c4887c6df55faa1766dbc178fa9ebd97