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Voltammetric characterisation of silicon-based microelectrode arrays and their application to mercury-free stripping voltammetry of copper ions
Tyndall National Institute, University College, Cork, Ireland.
Tyndall National Institute, University College, Cork, Ireland.
Tyndall National Institute, University College, Cork, Ireland.ORCID iD: 0000-0001-6889-0351
Tyndall National Institute, University College, Cork, Ireland.
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2007 (English)In: Talanta: The International Journal of Pure and Applied Analytical Chemistry, ISSN 0039-9140, E-ISSN 1873-3573, Vol. 71, no 3, 1022-1030 p.Article in journal (Refereed) Published
Abstract [en]

This paper describes the electrochemical characterisation of a range of gold and platinum microelectrode arrays (MEAs) fabricated by standardphotolithographic methods. The inter-electrode spacing, geometry, numbers and dimensions of the electrodes in the arrays were found to influencethe voltammetric behaviours obtained. Excellent correlation was found between experimental data and theoretical predictions employing publishedmodels of microelectrode behaviour. Gold MEAs were evaluated for their applicability to copper determination in a soil extract sample, whereagreement was found between the standard analytical method and a method based on underpotential deposition—anodic stripping voltammetry(UPD-ASV) at the MEAs, offering a mercury-free alternative for copper sensing.

Place, publisher, year, edition, pages
Elsevier, 2007. Vol. 71, no 3, 1022-1030 p.
Keyword [en]
Microelectrode array; Voltammetry; Micro-square and micro-band electrodes; Stripping voltammetry; Metal ion detection
National Category
Analytical Chemistry Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:liu:diva-92140DOI: 10.1016/j.talanta.2006.05.090OAI: oai:DiVA.org:liu-92140DiVA: diva2:620240
Available from: 2013-05-08 Created: 2013-05-08 Last updated: 2017-12-06Bibliographically approved

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Beni, Valerio

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