An electrochemical sensor for the determination of bisphenol A using glassy carbon electrode modified with reduced graphene oxide-silver/poly-l-lysine nanocomposites

Bisphenol A (BPA) is an effective endocrine-disrupting compound (EDC) that causes adverse effects on human health and environment. Therefore, it is indispensable to construct efficacious methods for evaluating the level of BPA to enhance the quality of life. In this study, a facile electrochemical s...

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Bibliographic Details
Published in:Journal of electroanalytical chemistry (Lausanne, Switzerland) Switzerland), 2017-11, Vol.805, p.39-46
Main Authors: Li, Yahui, Wang, Haoqiang, Yan, Bo, Zhang, Huayu
Format: Article
Language:English
Subjects:
Bisphenol A
Chemical sensors
Differential pulse voltammetry
Drinking water
Electrochemical oxidation
Electrochemical sensor
Electrodes
Glassy carbon
Graphene
Lysine
Nanocomposites
Phase locked systems
Quality of life
Reduced graphene oxide (RGO)
Silver
Voltammetry
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Summary:Bisphenol A (BPA) is an effective endocrine-disrupting compound (EDC) that causes adverse effects on human health and environment. Therefore, it is indispensable to construct efficacious methods for evaluating the level of BPA to enhance the quality of life. In this study, a facile electrochemical sensor based on reduced graphene oxide-silver/poly-l-lysine nanocomposites (RGO-Ag/PLL) modified glassy carbon electrode (GCE) is proposed for the detection of BPA. The synthesized RGO-Ag/PLL nanocomposites displays high electrocatalytic activity towards the electrochemical oxidation of BPA. Differential pulse voltammetry (DPV) is used as an analytical method for the quantitative determination of BPA, and the fabricated electrochemical sensor exhibits a linear response to BPA in the range of 1–80μM with the limit of detection (LOD) of 0.54μM at a signal-to-noise ratio of 3. Additionally, the developed RGO-Ag/PLL/GCE sensor is applied to detect the BPA in drinking water, and obtains satisfactory results.
ISSN:1572-6657
1873-2569
DOI:10.1016/j.jelechem.2017.10.022