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Issue 25, 2017
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A novel electrochemiluminescence sensor for bisphenol A determination based on graphene–palladium nanoparticles/polyvinyl alcohol hybrids

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Abstract

Herein, graphene–palladium nanoparticles (PdNP–GR) were synthesized and dispersed in polyvinyl alcohol (PVA) to obtain a PdNP–GR/PVA composite. The composite was used to establish a novel Ru(bpy)32+-based electrochemiluminescence (ECL) sensing platform for the sensitive detection of bisphenol A (BPA). The electrochemical and ECL responses of BPA on the PdNP–GR/PVA-modified glassy carbon electrode (GCE) were greatly enhanced as compared to those on PVA/GCE or bare GCE. It was found that PdNP–GR exhibited good electron transfer ability and catalytic activity. In addition, the ECL signal on the Ru(bpy)32+/PdNP–GR/PVA composite-modified electrode was greatly amplified by BPA. Under optimum conditions, a good linear relationship was obtained for the ECL intensity versus the logarithm of BPA concentration in the range of 1.0 × 10−10 to 1.0 × 10−5 M, with the detection limit of 2.5 × 10−11 M (S/N = 3). The fabricated sensing platform was successfully applied for the detection of BPA in baby bottle, and relatively satisfactory recoveries were obtained.

Graphical abstract: A novel electrochemiluminescence sensor for bisphenol A determination based on graphene–palladium nanoparticles/polyvinyl alcohol hybrids

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Publication details

The article was received on 16 May 2017, accepted on 05 Jun 2017 and first published on 06 Jun 2017


Article type: Paper
DOI: 10.1039/C7AY01244F
Citation: Anal. Methods, 2017,9, 3870-3875
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    A novel electrochemiluminescence sensor for bisphenol A determination based on graphene–palladium nanoparticles/polyvinyl alcohol hybrids

    Y. Hu, Z. Liu, H. Zhan, L. Hu, L. Cui and K. Wang, Anal. Methods, 2017, 9, 3870
    DOI: 10.1039/C7AY01244F

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