title: Construction of a nanostructure-based electrochemical sensor for voltammetric determination of bisphenol A.
abstract: A novel carbon paste electrode modified with graphene oxide nanosheets and an ionic liquid (n-hexyl-3-methylimidazolium hexafluoro phosphate) was fabricated. The electrochemical study of the modified electrode, as well as its efficiency for voltammetric oxidation of bisphenol A, is described. The electrode was also employed to study the electrochemical oxidation of bisphenol A, using cyclic voltammetry, chronoamperometry, square wave voltammetry and electrochemical impedance spectroscopy as diagnostic techniques. Square wave voltammetry exhibits a linear dynamic range from 9.0 × 10(-8) to 2.5 × 10(-4) M and a detection limit of 55.0 nM for bisphenol A. Finally, this new sensor was used for determination of bisphenol A in water samples using the standard addition method.
authors: Environment Department, Institute of Science and High Technology and Environmental Sciences, Graduate University of Advanced Technology, Kerman, Iran, h.beitollahi@yahoo.com.
authors: Hadi
authors: H
authors: Beitollahi
authors: Somayeh
authors: S
authors: Tajik
mesh_terms: D001559:Benzhydryl Compounds / Q000032:analysis*; D002244:Carbon / Q000737:chemistry; D004566:Electrodes; D004784:Environmental Monitoring / Q000295:instrumentation*; D004785:Environmental Pollutants / Q000032:analysis*; D057230:Limit of Detection; D049329:Nanostructures; D010084:Oxidation-Reduction; D010087:Oxides; D010636:Phenols / Q000032:analysis*; D000098826:Bisphenol A Compounds
chemical_list: D001559:Benzhydryl Compounds; D002244:Carbon; D004785:Environmental Pollutants; D010087:Oxides; D010636:Phenols; C006780:bisphenol A; D000098826:Bisphenol A Compounds