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An Exfoliated Graphite-Based Bisphenol A Electrochemical Sensor

Ndlovu, Thabile and Arotiba, Omotayo A and Sampath, Srinivasan and Krause, Rui W and Mamba, Bhekie B (2012) An Exfoliated Graphite-Based Bisphenol A Electrochemical Sensor. In: SENSORS, 12 (9). pp. 11601-11611.

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Official URL: http://dx.doi.org/10.3390/s120911601

Abstract

The use of an exfoliated graphite (EG) electrode in the square wave voltammetric detection of bisphenol A (a model phenolic pollutant) in water, whereby the phenolic electrode fouling challenge is mitigated, is described. The oxidation peak of BPA was observed at about 0.45 V in phosphate buffer solution at pH 10. The current response exhibited a linear relationship with the concentration over a range from 1.56 mu M-50 mu M. The detection limit was calculated to be 0.76 mu M. The EG electrode surface was renewed after each measurement with excellent reproducibility. A real sample application was also investigated.

Item Type: Journal Article
Additional Information: Copyright for this article belongs to MDPI AG
Keywords: exfoliated graphite electrode; bisphenol A;phenol;electrode fouling;pollutant
Department/Centre: Division of Chemical Sciences > Inorganic & Physical Chemistry
Date Deposited: 12 Nov 2012 11:08
Last Modified: 12 Nov 2012 11:15
URI: http://eprints.iisc.ernet.in/id/eprint/45328

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