title: The simultaneous electrochemical detection of catechol and hydroquinone with [Cu(Sal-β-Ala)(3,5-DMPz)2]/SWCNTs/GCE.
abstract: A glassy carbon electrode was modified with a copper(II) complex [Cu(Sal-β-Ala) (3,5-DMPz)2] (Sal = salicylaldehyde, β-Ala = β-alanine, 3,5-DMPz = 3,5-dimethylpyrazole) and single-walled carbon nanotubes (SWCNTs). The modified electrode was used to detect catechol (CT) and hydroquinone (HQ) and exhibited good electrocatalytic activities toward the oxidation of CT and HQ. The peak currents were linear with the CT and HQ concentrations over the range of 5-215 μmol·L(-1) and 5-370 μmol·L(-1) with corresponding detection limits of 3.5 μmol·L(-1) and 1.46 μmol·L(-1) (S/N = 3) respectively. Moreover, the modified electrode exhibited good sensitivity, stability and reproducibility for the determination of CT and HQ, indicating the promising applications of the modified electrode in real sample analysis.
authors.affiliation: Department of Chemistry, School of Chemistry, Chemical Engineering and Life Science, Wuhan University of Technology, Wuhan 430070, China. lamy7667@hotmail.com.
authors.forename: Lina Abdullah
authors.initials: LA
authors.lastname: Alshahrani
authors.affiliation: Department of Chemistry, School of Chemistry, Chemical Engineering and Life Science, Wuhan University of Technology, Wuhan 430070, China. chemlixi@whut.edu.cn.
authors.forename: Xi
authors.initials: X
authors.lastname: Li
authors.affiliation: Department of Chemistry, School of Chemistry, Chemical Engineering and Life Science, Wuhan University of Technology, Wuhan 430070, China. luohuiwhut@126.com.
authors.forename: Hui
authors.initials: H
authors.lastname: Luo
authors.affiliation: Department of Chemistry, School of Chemistry, Chemical Engineering and Life Science, Wuhan University of Technology, Wuhan 430070, China. chemyanglinlin@whut.edu.cn.
authors.forename: Linlin
authors.initials: L
authors.lastname: Yang
authors.affiliation: Department of Chemistry, School of Chemistry, Chemical Engineering and Life Science, Wuhan University of Technology, Wuhan 430070, China. doublemeng_1988@126.com.
authors.forename: Mengmeng
authors.initials: M
authors.lastname: Wang
authors.affiliation: Department of Chemistry, School of Chemistry, Chemical Engineering and Life Science, Wuhan University of Technology, Wuhan 430070, China. yansongling@whut.edu.cn.
authors.forename: Songling
authors.initials: S
authors.lastname: Yan
authors.affiliation: Department of Chemistry, School of Chemistry, Chemical Engineering and Life Science, Wuhan University of Technology, Wuhan 430070, China. chemliup@whut.edu.cn.
authors.forename: Peng
authors.initials: P
authors.lastname: Liu
authors.affiliation: Department of Chemistry, School of Chemistry, Chemical Engineering and Life Science, Wuhan University of Technology, Wuhan 430070, China. whyang2003@whut.edu.cn.
authors.forename: Yuqin
authors.initials: Y
authors.lastname: Yang
authors.affiliation: Department of Chemistry, School of Chemistry, Chemical Engineering and Life Science, Wuhan University of Technology, Wuhan 430070, China. liquanhua@whut.edu.cn.
authors.forename: Quanhua
authors.initials: Q
authors.lastname: Li
mesh_terms: D002396:Catechols / Q000032:analysis* / Q000737:chemistry; D045424:Complex Mixtures / Q000032:analysis; D003217:Conductometry / Q000295:instrumentation*; D004566:Electrodes; D004784:Environmental Monitoring / Q000295:instrumentation; D004867:Equipment Design; D019544:Equipment Failure Analysis; D006873:Hydroquinones / Q000032:analysis* / Q000737:chemistry; D037742:Nanotubes, Carbon / Q000737:chemistry*; D014874:Water Pollutants, Chemical / Q000032:analysis* / Q000737:chemistry
chemical_list: D002396:Catechols; D045424:Complex Mixtures; D006873:Hydroquinones; D037742:Nanotubes, Carbon; D014874:Water Pollutants, Chemical; C034221:catechol; C031927:hydroquinone