title: Highly sensitive and simultaneous electrochemical determination of 2-aminophenol and 4-aminophenol based on poly(l-arginine)-β-cyclodextrin/carbon nanotubes@graphene nanoribbons modified electrode.
abstract: Owing to the similar characteristics and physiochemical property of 2-aminophenol (2-AP) and 4-aminophenol (4-AP), the highly sensitive simultaneous electrochemical determination of 2- and 4-AP is a great challenge. In this paper, by electropolymerizing β-cyclodextrin (β-CD) and l-arginine (l-Arg) on the surface of carbon nanotubes@graphene nanoribbons (CNTs@GNRs) core-shell heterostructure, a P-β-CD-l-Arg/CNTs@GNRs nanohybrid modified electrode was prepared successfully, and it could exhibit the synergetic effects of β-CD (high host-guest recognition and enrichment ability), l-Arg (excellent electrocatalytic activity) and CNTs@GNRs (prominent electrochemical properties and large surface area), the P-β-CD-l-Arg/CNTs@GNRs modified electrode was used in the electrochemical determination of 2- and 4-AP, the results demonstrated that the highly sensitive and simultaneous determination of 2- and 4-AP is successfully achieved and the modified electrode has a linear response range of 25.0-1300.0 nM for both 2- and 4-AP, and the detection limits of 2- and 4-AP obtained in this work are 6.2 and 3.5 nM, respectively.
authors.affiliation: School of the Environment and Safety Engineering, Collaborative Innovation Center of Technology and Material of Water Treatment, Jiangsu University, Zhenjiang 212013, PR China.
authors.forename: Yinhui
authors.initials: Y
authors.lastname: Yi
authors.affiliation: School of the Environment and Safety Engineering, Collaborative Innovation Center of Technology and Material of Water Treatment, Jiangsu University, Zhenjiang 212013, PR China; State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha, 410082, PR China. Electronic address: zhgb1030@ujs.edu.cn.
authors.forename: Gangbing
authors.initials: G
authors.lastname: Zhu
authors.affiliation: School of the Environment and Safety Engineering, Collaborative Innovation Center of Technology and Material of Water Treatment, Jiangsu University, Zhenjiang 212013, PR China.
authors.forename: Xiangyang
authors.initials: X
authors.lastname: Wu
authors.affiliation: School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, PR China.
authors.forename: Kun
authors.initials: K
authors.lastname: Wang
mesh_terms: D000627:Aminophenols / Q000032:analysis*; D001120:Arginine / Q000737:chemistry; D045424:Complex Mixtures / Q000032:analysis; D003217:Conductometry / Q000295:instrumentation*; D004784:Environmental Monitoring / Q000295:instrumentation; D004867:Equipment Design; D019544:Equipment Failure Analysis; D006108:Graphite / Q000737:chemistry; D008839:Microelectrodes; D037742:Nanotubes, Carbon / Q000737:chemistry* / Q000648:ultrastructure; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D014874:Water Pollutants, Chemical / Q000032:analysis*; D047392:beta-Cyclodextrins / Q000737:chemistry*
chemical_list: D000627:Aminophenols; D045424:Complex Mixtures; D037742:Nanotubes, Carbon; D014874:Water Pollutants, Chemical; D047392:beta-Cyclodextrins; C027667:2-aminophenol; D006108:Graphite; D001120:Arginine; C031215:betadex; C026729:4-aminophenol
keywords: Aminophenol; Cyclodextrin; Electrochemical sensor; Graphene nanoribbon; Modified electrode