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Received February 13, 2017
Accepted April 4, 2017
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This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits
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Electrochemical detection of arsenic(III) using porous gold via square wave voltammetry
Department of Chemical Engineering, Kwangwoon University, Seoul 01897, Korea
korea1@kw.ac.kr
Korean Journal of Chemical Engineering, July 2017, 34(7), 2096-2098(3), 10.1007/s11814-017-0100-7
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Abstract
Electrochemical detection of trace arsenic(III) in aqueous phase was studied with a porous gold (PAu) electrode, which was prepared by paper-based templating method. Square wave voltammetry was performed in As(III) solutions. The limit of detection of 0.1 ppb was obtained with a linear detection range of 0.1-14 ppb, which complies with the regulations for As(III) content in drinking water. The analysis of roughness factor and diffusion coefficient showed that the porous structure of the PAu electrode might have a stronger contribution to improving the sensitivity and selectivity of the target ion, compared to bulk gold electrode.
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