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A comparison of different types of gold-carbon composite electrode for detection of arsenic(III)

Biomedical Sciences Research Institute Computer Science Research Institute Environmental Sciences Research Institute Nanotechnology & Advanced Materials Research Institute

Simm, AO, Banks, CE, Wilkins, SJ, Karousos, NG, Davis, J and Compton, RG (2005) A comparison of different types of gold-carbon composite electrode for detection of arsenic(III). ANALYTICAL AND BIOANALYTICAL CHEMISTRY, 381 (4). pp. 979-985. [Journal article]

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DOI: 10.1007/s00216-004-2960-z


A study has been conducted using abrasively modified basal and edge-plane graphite, carbon-paste, and carbon-epoxy electrodes to create gold-carbon composite electrodes. Using either nano or micro-sized gold particles their suitability for use in detecting arsenic(III) is assessed. It was found that gold arrays prepared from micron-sized particles gave the best performance for arsenic detection. In particular micron arrays produced in carbon-paste electrodes with an easily renewable surface work well for detection of arsenic, producing a detection limit of 5(+/-2)x10(-9) mol L-1, with a high sensitivity of 10(+/-0.1) A mol(-1) L.

Item Type:Journal article
Faculties and Schools:Faculty of Computing & Engineering
Faculty of Computing & Engineering > School of Engineering
Research Institutes and Groups:Engineering Research Institute
Engineering Research Institute > Nanotechnology & Integrated BioEngineering Centre (NIBEC)
ID Code:14342
Deposited By:Professor James Davis
Deposited On:01 Jul 2010 09:35
Last Modified:18 Aug 2011 11:19

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