title: Electrochemical determination of estrogenic compound bisphenol F in food packaging using carboxyl functionalized multi-walled carbon nanotubes modified glassy carbon electrode.
abstract: A simple and highly sensitive electroanalytical method for the determination of bisphenol F (BPF) was developed, which was carried out on multi-walled carbon nanotubes-COOH (MWCNT-COOH) modified glassy carbon electrode (GCE) using cyclic voltammetry (CV) and differential pulse voltammetry (DPV). The results showed that MWCNT-COOH remarkably enhanced the oxidation of BPF, which improved the anodic peak current of BPF significantly. The mechanism was oxidation of BPF lose electrons on the electrode surface via adsorption-controlled process, electrode reaction is the two electrons/two protons process. Under the optimised conditions, the oxidation peak current was proportional to BPF concentration the range from 0.12 to 6.01 μg mL(-1). The detection limit was 0.11 μg mL(-1) (S/N=3), and the relative standard deviation (R.S.D.) was 3.5% (n=9). Moreover, the MWCNT-COOH/GCE electrode showed good reproducibility, stability and anti-interference. Therefore, the proposed method was successfully applied to determine BPF in food packing and the results were satisfactory.
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.
authors.forename: Lijun
authors.initials: L
authors.lastname: Yang
authors.affiliation: College of Chemistry, Liaoning University, Shenyang 110036, People's Republic of China.
authors.forename: Xudong
authors.initials: X
authors.lastname: Jin
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 / Q000737:chemistry*; D002244:Carbon / Q000737:chemistry*; D004563:Electrochemistry; D004566:Electrodes; D004967:Estrogens / Q000737:chemistry*; D018857:Food Packaging; D037742:Nanotubes, Carbon / Q000737:chemistry*; D010084:Oxidation-Reduction; D010636:Phenols / Q000737:chemistry*; D000098826:Bisphenol A Compounds
chemical_list: D001559:Benzhydryl Compounds; D002244:Carbon; D004967:Estrogens; D037742:Nanotubes, Carbon; D010636:Phenols; C006780:bisphenol A; D000098826:Bisphenol A Compounds
keywords: Bisphenol F; Carboxyl functionalized multi-walled carbon nanotubes; Cyclic voltammetry; Differential pulse voltammetry; Electrochemical determination; Food packaging