Adsorption behavior of ractopamine on carbon nanoparticle modified electrode and its analytical application

	Adsorption behavior of ractopamine on carbon nanoparticle modified electrode and its analytical application
	Yao, Su 1; Hu, Yufei 1; Li, Gongke 1; Zhang, Yukui 2
刊名	electrochimica acta
	2012-08-30
卷号	77 页码:83-88
关键词	Carbon nanoparticle Ractopamine Adsorption pi-pi interaction Salt linkage
通讯作者	yufeihu ; 李攻科
产权排序	2,4
英文摘要	in this paper, carbon nanoparticle (cnp) with abundant oxygen-containing groups was prepared. the adsorption behavior of ractopamine on the cnp surface was investigated by electrochemical study. two oxidative peaks of ractopamine were observed at 0.60 and 0.82 v. the oxidative peaks were distinctly enhanced on the cnp surface and the enhancements were result from the adsorption. the adsorption mechanism was discussed in detail and deduced to be via pi-pi interaction and salt linkage. the salt linkage between the secondary amide of ractopamine and the carboxyl group on cnp surfaces was confirmed. it provided a novel electron transfer channel for the electrochemical oxidation of phenolic groups. a sensitive differential pulse voltammetry method based on the adsorption was proposed for the determination of ractopamine with the detection limit of 2.0 x 10(-10) mol l-1. this method was successfully applied to the analysis of ractopamine in urine sample. (c) 2012 elsevier ltd. all rights reserved.
学科主题	物理化学
WOS标题词	science & technology ; physical sciences
类目[WOS]	electrochemistry
研究领域[WOS]	electrochemistry
关键词[WOS]	graphene oxide ; composite film ; direct electrochemistry ; aqueous-solution ; glucose-oxidase ; triclosan ; biosensor ; graphite
收录类别	SCI
语种	英语
WOS记录号	WOS:000307131300013
公开日期	2013-10-11
内容类型	期刊论文
源URL	[http://159.226.238.44/handle/321008/118304]
专题	大连化学物理研究所_中国科学院大连化学物理研究所
作者单位	1.Sun Yat Sen Univ, Sch Chem & Chem Engn, Guangzhou 510275, Guangdong, Peoples R China 2.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116011, Peoples R China
推荐引用方式 GB/T 7714	Yao, Su,Hu, Yufei,Li, Gongke,et al. Adsorption behavior of ractopamine on carbon nanoparticle modified electrode and its analytical application[J]. electrochimica acta,2012,77:83-88.
APA	Yao, Su,Hu, Yufei,Li, Gongke,&Zhang, Yukui.(2012).Adsorption behavior of ractopamine on carbon nanoparticle modified electrode and its analytical application.electrochimica acta,77,83-88.
MLA	Yao, Su,et al."Adsorption behavior of ractopamine on carbon nanoparticle modified electrode and its analytical application".electrochimica acta 77(2012):83-88.