中国科学院机构知识库网格
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In-channel indirect amperometric detection of heavy metal ions for electrophoresis on a poly(dimethylsiloxane) microchip

文献类型:期刊论文

作者Li, Xin-Ai; Zhou, Dong-Mei; Xu, Jing-Juan; Chen, Hong-Yuan
刊名TALANTA
出版日期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
DOI10.1016/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
WOS记录号WOS:000244536800020
出版者ELSEVIER SCIENCE BV
URI标识http://www.irgrid.ac.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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来源:南京土壤研究所

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