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An Exfoliated Graphite-Based Bisphenol A Electrochemical Sensor.


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 μM–50 μM. The detection limit was calculated to be 0.76 μM. The EG electrode surface was renewed after each measurement with excellent reproducibility. A real sample application was also investigated.

SUBMITTER: Ndlovu T 

PROVIDER: S-EPMC3478800 | biostudies-other | 2012

REPOSITORIES: biostudies-other

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