title: Simultaneous determination of endocrine disrupting compounds bisphenol F and bisphenol AF using carboxyl functionalized multi-walled carbon nanotubes modified electrode.
abstract: A novel, simple and selective electrochemical method was developed for simultaneous determination of bisphenol F (BPF) and bisphenol AF (BPAF) in aqueous media (phosphate buffer solution, pH 6.0) on carboxyl functionalized multi-walled carbon nanotubes modified glassy carbon electrode (MWCNT-COOH/GCE) using differential pulse voltammetry (DPV). In DPV, MWCNT-COOH/GCE could separate the oxidation peak potentials of BPF and BPAF present in the same solution though, at the bare GCE, the peak potentials were indistinguishable. The results showed that the electrochemical sensor exhibited excellent electrocatalytic activity towards the oxidation of the two analytes. The peak current in DPV of BPF and BPAF increased linearly with their concentration in the ranges of 0.6-1.6 mmol/L BPF and 0.6-1.6 mmol/L BPAF. The detection limits were 0.1243 mmol/L and 0.1742 mmol/L (S/N=3) correspondingly. The modified electrode was successfully used to simultaneously determine BPF and BPAF in real samples.
authors.affiliation: College of Chemistry, Liaoning University, Shenyang 110036, People׳s Republic of China.
authors.forename: Jichun
authors.initials: J
authors.lastname: Yang
authors.affiliation: College of Chemistry, Liaoning University, Shenyang 110036, People׳s Republic of China.
authors.forename: Xin
authors.initials: X
authors.lastname: Wang
authors.affiliation: College of Chemistry, Liaoning University, Shenyang 110036, People׳s Republic of China; College of Sciences, Heilongjiang Bayi Agricultural University, Daqing 163319, People׳s Republic of China.
authors.forename: Danfeng
authors.initials: D
authors.lastname: Zhang
authors.affiliation: College of Chemistry, Liaoning University, Shenyang 110036, People׳s Republic of China.
authors.forename: Lingling
authors.initials: L
authors.lastname: Wang
authors.affiliation: College of Chemistry, Liaoning University, Shenyang 110036, People׳s Republic of China. Electronic address: zyz91@sohu.com.
authors.forename: Qi
authors.initials: Q
authors.lastname: Li
authors.affiliation: College of Chemistry, Liaoning University, Shenyang 110036, People׳s Republic of China. Electronic address: zhanglei63@126.com.
authors.forename: Lei
authors.initials: L
authors.lastname: Zhang
mesh_terms: D001559:Benzhydryl Compounds / Q000032:analysis*; D055664:Electrochemical Techniques / Q000295:instrumentation / Q000379:methods*; D004566:Electrodes; D052244:Endocrine Disruptors / Q000032:analysis*; D017575:Gloves, Protective; D057230:Limit of Detection; D010084:Oxidation-Reduction; D010636:Phenols / Q000032:analysis*; D012408:Rubber / Q000032:analysis*; D062065:Wastewater / Q000032:analysis*; D005466:Fluorocarbons; D000098826:Bisphenol A Compounds; D000098833:Bisphenol F Compounds
chemical_list: D001559:Benzhydryl Compounds; D052244:Endocrine Disruptors; D010636:Phenols; D012408:Rubber; D062065:Wastewater; C583074:bisphenol AF; D005466:Fluorocarbons; D000098826:Bisphenol A Compounds; C008745:4,4'-bisphenol F; D000098833:Bisphenol F Compounds
keywords: Bisphenol AF; Bisphenol F; Carboxyl functionalized multi-walled carbon nanotubes; Differential pulse voltammetry