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学科主题: 物理化学
题名: Postage stamp-sized array sensor for the sensitive screening test of heavy-metal ions
作者: Zhang, Yu1;  Li, Xiao1;  Li, Hui1;  Song, Ming1;  Feng, Liang1;  Guan, Yafeng1
通讯作者: 冯亮
刊名: ANALYST
发表日期: 2014
DOI: 10.1039/c4an01022a
卷: 139, 期:19, 页:4887-4893
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: The sensitive determination of heavy-metal ions has been widely investigated in recent years due to their threat to the environment and to human health. Among various analytical detection techniques, inexpensive colorimetric testing papers/strips play a very important role. The limitation, however, is also clear: the sensitivity is usually low and the selectivity is poor. In this work, we have developed a postage stamp-sized array sensor composed of nine commercially available heterocyclic azo indicators. Combining filtration-based enrichment with an array of technologies-based pattern-recognition, we have obtained the discrimination capability for seven heavy-metal ions (Hg2+, Pb2+, Ag+, Ni2+, Cu2+, Zn2+, and Co2+) at their Chinese wastewater discharge standard concentrations. The allowable detection level of Hg2+ was down to 0.05 mg L-1. The heavy-metal ions screening test was readily achieved using a standard chemometric approach. And the array sensor applied well in real water samples.
关键词[WOS]: PAPER ;  WATER ;  HONEY
语种: 英语
WOS记录号: WOS:000341303000021
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/144028
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, Dalian 116023, Liaoning, Peoples R China

Recommended Citation:
Zhang, Yu,Li, Xiao,Li, Hui,et al. Postage stamp-sized array sensor for the sensitive screening test of heavy-metal ions[J]. ANALYST,2014,139(19):4887-4893.
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