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题名: Enhancement of sensitivity of paper-based sensor array for the identification of heavy-metal ions
作者: Feng, Liang1;  Li, Xiao1;  Li, Hui1;  Yang, Wei1, 2;  Chen, Liang1;  Guan, Yafeng1
关键词: Enrichment ;  Paper-based ;  Heavy-metal ion ;  Chemometric ;  Pyridylazo
刊名: ANALYTICA CHIMICA ACTA
发表日期: 2013-05-30
DOI: 10.1016/j.aca.2013.03.046
卷: 780, 页:74-80
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Analytical
研究领域[WOS]: Chemistry
英文摘要: Paper-based microfluidic devices have been widely investigated in recent years. Among various detection techniques, colorimetric method plays a very important role in paper-based microfluidic devices. The limitation, however, is also clear: they generally require highly sensitive indicators. In this work, we have developed a novel enrichment-based paper test for the discrimination of heavy-metal ions. Comparing to regular paper-based microfluidic devices, enrichment-based technique showed largely improved sensitivity. Combining with eight pyridylazo compounds and array technologies-based pattern-recognition, we have obtained the discrimination capability of eight different heavy-metal ions at same concentration as low as 50 mu M using our enrichment-based pyridylazo compounds array paper. Identification of the heavy-metal ions was readily achieved using a standard chemometric approach. This method can be, of course, used for other analytes as well. (C) 2013 Elsevier B.V. All rights reserved.
关键词[WOS]: MICROFLUIDIC DEVICES ;  STRIPPING VOLTAMMETRY ;  SPECTROMETRY ;  TIME
语种: 英语
WOS记录号: WOS:000319792200010
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/137734
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, Key Lab Separat Sci Analyt Chem CAS, Lab Instrumentat & Analyt Chem, Dalian 116023, Liaoning, Peoples R China
2.Wuhan Univ, Coll Chem & Mol Sci, Wuhan 430072, Peoples R China

Recommended Citation:
Feng, Liang,Li, Xiao,Li, Hui,et al. Enhancement of sensitivity of paper-based sensor array for the identification of heavy-metal ions[J]. ANALYTICA CHIMICA ACTA,2013,780:74-80.
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