title: Electrochemical bisphenol A sensor based on N-doped graphene sheets.
abstract: Bisphenol A (BPA), which could disrupt endocrine system and cause cancer, has been considered as an endocrine disruptor. Therefore, it is very important and necessary to develop a sensitive and selective method for detection of BPA. Herein, nitrogen-doped graphene sheets (N-GS) and chitosan (CS) were used to prepare electrochemical BPA sensor. Compared with graphene, N-GS has favorable electron transfer ability and electrocatalytic property, which could enhance the response signal towards BPA. CS also exhibits excellent film forming ability and improves the electrochemical behavior of N-GS modified electrode. The sensor exhibits a sensitive response to BPA in the range of 1.0×10(-8)-1.3×10(-6) mol L(-1) with a low detection limit of 5.0×10(-9) mol L(-1) under the optimal conditions. Finally, this proposed sensor was successfully employed to determine BPA in water samples with satisfactory results.
authors.affiliation: Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan, China.
authors.forename: Haixia
authors.initials: H
authors.lastname: Fan
authors.forename: Yan
authors.initials: Y
authors.lastname: Li
authors.forename: Dan
authors.initials: D
authors.lastname: Wu
authors.forename: Hongmin
authors.initials: H
authors.lastname: Ma
authors.forename: Kexia
authors.initials: K
authors.lastname: Mao
authors.forename: Dawei
authors.initials: D
authors.lastname: Fan
authors.forename: Bin
authors.initials: B
authors.lastname: Du
authors.forename: He
authors.initials: H
authors.lastname: Li
authors.forename: Qin
authors.initials: Q
authors.lastname: Wei
mesh_terms: D001559:Benzhydryl Compounds; D015374:Biosensing Techniques / Q000379:methods*; D048271:Chitosan / Q000737:chemistry; D004563:Electrochemistry; D006108:Graphite / Q000737:chemistry*; D057230:Limit of Detection; D008855:Microscopy, Electron, Scanning; D010636:Phenols / Q000032:analysis*; D045483:Rivers / Q000737:chemistry; D014874:Water Pollutants, Chemical / Q000032:analysis*; D000098826:Bisphenol A Compounds
chemical_list: D001559:Benzhydryl Compounds; D048271:Chitosan; D006108:Graphite; D010636:Phenols; D014874:Water Pollutants, Chemical; C006780:bisphenol A; D000098826:Bisphenol A Compounds