A sensitive electrochemical sensor based on gold nanoparticles droplet deposition on glassy carbon electrode for bisphenol a detection. | [Pakistan Journal of Biotechnology • 2016]

Author(s):

1. Hoda Ezoji: Biofuel & Renewable Energy Research Center, Faculty of Chemical Engineering, Babol Noshirvani University of Technology, Babol, Iran

2. Mostafa Rahimnejad: Biofuel & Renewable Energy Research Center, Faculty of Chemical Engineering, Babol Noshirvani University of Technology, Babol, Iran

3. Maryam Asghary: Department of Analytical Chemistry, Faculty of Chemistry, University of Mazandaran, Babolsar, Iran

Abstract:

A convenient, rapid and extremely sensitive electrochemically detection of bisphenol A (BPA) was proposed in phosphate buffer (pH =7) on a gold nanoparticles modified glassy carbon electrode (GNs/GCE). Cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS) were applied for characterization of GNs/GCE. Differential pulse voltammetry (DPV) was employed for measuring BPA. The studies exhibited lower over potentials, improved current response, high reproducibility and lower detection limit at the GNs/GCE versus the bare electrode. Therefore, GNs displays excellent electroactivity toward BPA. Within the concentration range of lx10-8 to 6x10-6M. The fabricated electrochemical sensor demonstrated linear response to BPA with the detection limit of (1.5 x10-9M).

Page(s): 133-140

DOI: DOI not available

Published: Journal: Pakistan Journal of Biotechnology, Volume: 13, Issue: 2, Year: 2016

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