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	In-channel indirect amperometric detection of heavy metal ions for electrophoresis on a poly(dimethylsiloxane) microchip
	Li, Xin-Ai; Zhou, Dong-Mei; Xu, Jing-Juan; Chen, Hong-Yuan
刊名	TALANTA
	2007-02-28
卷号	71期号:3页码:1130-1135
关键词	indirect amperometric detection mode heavy metal ions poly(dimethylsiloxane) microchip capillary electrophoresis carbon fibre electrode
ISSN号	0039-9140
DOI	10.1016/j.talanta.2006.06.009
通讯作者	Xu, Jing-Juan(xujj@nju.edu.cn)
英文摘要	In-channel indirect amperometric detection mode for microchip capillary electrophoresis with positive separation electric field is successfully applied to some heavy metal ions. The influences of separation voltage, detection potential, the concentration and pH value of running buffer on the response of the detector have been investigated. An optimized condition of 1200 V separation voltage, -0.1 V detection potential, 20 mM (pH 4.46) running buffer of 2-(N-morpholino)ethanesulfonic acid (MES) + L-hisfidine (L-His) was selected. The results clearly showed that Pb(2+), Cd(2+), and Cu(2+) were efficiently separated within 80 s in a 3.7 cm long native separation PDMS/PDMS channel and successfully detected at a single carbon fibre electrode. The theoretical plate numbers of Pb(2+), Cd(2+), and Cu(2+) were 1.2 x 10(5), 2.5 x 10(5), and 1.9 x 10(5) m(-1), respectively. The detection limits for Pb(2+), Cd(2+), and Cu(2+) were 1.3, 3.3 and 7.4 mu M (S/N = 3). (c) 2006 Elsevier B.V. All rights reserved.
收录类别	SCI
WOS关键词	CONTACTLESS CONDUCTIVITY DETECTION ; CAPILLARY-ELECTROPHORESIS ; ELECTROCHEMICAL DETECTION ; ELECTROACTIVE ANALYTES ; ELECTRODE ; SEPARATION ; ANIONS
WOS研究方向	Chemistry
WOS类目	Chemistry, Analytical
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000244536800020
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2558648
专题	南京土壤研究所
通讯作者	Xu, Jing-Juan
作者单位	1.Nanjing Univ, Key Lab Analyt Chem Life Sci, MOE, Sch Chem & Chem Engn, Nanjing 210093, Peoples R China 2.Chinese Acad Sci, State Key Lab Soil & Sustainable Agr, Inst Soil Sci, Nanjing 210008, Peoples R China
推荐引用方式 GB/T 7714	Li, Xin-Ai,Zhou, Dong-Mei,Xu, Jing-Juan,et al. In-channel indirect amperometric detection of heavy metal ions for electrophoresis on a poly(dimethylsiloxane) microchip[J]. TALANTA,2007,71(3):1130-1135.
APA	Li, Xin-Ai,Zhou, Dong-Mei,Xu, Jing-Juan,&Chen, Hong-Yuan.(2007).In-channel indirect amperometric detection of heavy metal ions for electrophoresis on a poly(dimethylsiloxane) microchip.TALANTA,71(3),1130-1135.
MLA	Li, Xin-Ai,et al."In-channel indirect amperometric detection of heavy metal ions for electrophoresis on a poly(dimethylsiloxane) microchip".TALANTA 71.3(2007):1130-1135.

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