title: Electrochemical determination of bisphenol A at ordered mesoporous carbon modified nano-carbon ionic liquid paste electrode.
abstract: A simple bisphenol A (BPA) sensor was successfully fabricated based on ordered mesoporous carbon CMK-3 modified nano-carbon ionic liquid paste electrode (CMK-3/nano-CILPE). The nanostructure of CMK-3 and the surface morphologies of modified electrodes were characterized by transmission electron microscopy (TEM) and scanning electron microscopy (SEM). Electrochemical properties of the fabricated electrodes were investigated by cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS). The fabricated sensor displayed excellent electroactivity towards bisphenol A using linear sweep voltammetry (LSV). Experimental conditions influencing the analytical performance of the modified electrode were optimized. Under optimal conditions, the oxidation peak current was proportional to BPA concentration in the range from 0.2 μM to 150 μM with a detection limit of 0.05 μM (S/N=3). This method was successfully used for determination of BPA leached from drinking bottle and plastic bag with good recoveries.
authors.affiliation: Electrochemistry and spectroscopy analysis laboratory, School of Public Health and Management, Ningxia Medical University, Yinchuan 750004, PR China. Electronic address: yonghongli2012@163.com.
authors.forename: Yonghong
authors.initials: Y
authors.lastname: Li
authors.affiliation: Department of Chemistry and Chemical Engineering, Jining University, Qufu 273155, PR China.
authors.forename: Xiurong
authors.initials: X
authors.lastname: Zhai
authors.affiliation: School of Basic Medical Sciences, Ningxia Medical University, Yinchuan 750004, PR China.
authors.forename: Xinsheng
authors.initials: X
authors.lastname: Liu
authors.affiliation: Electrochemistry and spectroscopy analysis laboratory, School of Public Health and Management, Ningxia Medical University, Yinchuan 750004, PR China.
authors.forename: Ling
authors.initials: L
authors.lastname: Wang
authors.affiliation: Electrochemistry and spectroscopy analysis laboratory, School of Public Health and Management, Ningxia Medical University, Yinchuan 750004, PR China.
authors.forename: Herong
authors.initials: H
authors.lastname: Liu
authors.affiliation: College of Chemistry and Chemical Engineering, Xinyang Normal University, Xinyang 464000, PR China. Electronic address: wanghaibohn@163.com.
authors.forename: Haibo
authors.initials: H
authors.lastname: Wang
mesh_terms: D001559:Benzhydryl Compounds / Q000032:analysis*; D002244:Carbon / Q000737:chemistry; D058266:Dielectric Spectroscopy / Q000295:instrumentation / Q000379:methods*; D055664:Electrochemical Techniques / Q000295:instrumentation / Q000379:methods; D004566:Electrodes; D052578:Ionic Liquids / Q000737:chemistry*; D049329:Nanostructures / Q000737:chemistry; D037742:Nanotubes, Carbon / Q000737:chemistry*; D010636:Phenols / Q000032:analysis*; D016062:Porosity; D000098826:Bisphenol A Compounds
chemical_list: D001559:Benzhydryl Compounds; D002244:Carbon; D052578:Ionic Liquids; D037742:Nanotubes, Carbon; D010636:Phenols; C006780:bisphenol A; D000098826:Bisphenol A Compounds
keywords: Bisphenol A; Linear sweep voltammetry; Nano-carbon ionic liquid paste electrode; Ordered mesoporous carbon