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学科主题物理化学
Naked-eye sensor for rapid determination of mercury ion
Liu, Jing1,2; Wu, Dapeng1; Yan, Xiaohui1,2; Guan, Yafeng1; Wu DP(吴大朋); Guan YF(关亚风)
关键词Mercuric Ion Naked-eye Colorimetric Filtration
刊名TALANTA
2013-11-15
DOI10.1016/j.talanta.2013.07.035
116页:563-568
收录类别SCI
合作性质
文章类型Article
部门归属1
项目归属105
产权排名待补充
WOS标题词Science & Technology ; Physical Sciences
资助者1,1 ; 1,1 ; 1,1 ; 1,1
类目[WOS]Chemistry, Analytical
研究领域[WOS]Chemistry
关键词[WOS]SOLID-PHASE EXTRACTION ; FUNCTIONALIZED GOLD NANOPARTICLES ; ANODIC-STRIPPING VOLTAMMETRY ; ON-SITE DETECTION ; AQUEOUS-SOLUTION ; TRACE MERCURY ; HG2+ ; FLUORESCENT ; CHEMOSENSORS ; SPIROLACTAM
英文摘要A naked-eye paper sensor for rapid determination of trace mercury ion in water samples was designed and demonstrated. The mercury-sensing rhodamine B thiolactone was immobilized in silica matrices and the silica matrices were impregnated firmly and uniformly in the filter paper. As water samples flow through the filter paper, the membrane color will change from white to purple red, which could be observed obviously with naked eye, when concentration of mercury ions equals to or exceeds 10 nM, the maximum residue level in drinking water recommended by U.S. EPA. The color change can also be recorded by a flatbed scanner and then digitized, reducing the detection limit of Hg2+ down to 1.2 nM. Moreover, this method is extremely specific for Hg2+ and shows a high tolerance ratio of interferent coexisting ions. The presence of Na+ (2 mM), K+ (2 mM), Fe3+ (0.1 mM), Zn2+ (0.1 mM), Mg2+ (0.1 mM), Ni2+ (50 mu M), Co2+ (50 mu M), Cd2+ (50 mu M), Pb2+ (50 mu M), Cu2+ (50 mu M) and Ag+ (3.5 mu M) did not interfere with the detection of Hg2+ (25 nM). Finally, the present method was applied in the detection of Hg2+ in mineral water, tap water and pond water. (C) 2013 Elsevier B.V. All rights reserved.
语种英语
资助者1,1 ; 1,1 ; 1,1 ; 1,1
原文出处查看原文
WOS记录号WOS:000328176000083
引用统计
被引频次:13[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/119232
专题中国科学院大连化学物理研究所
通讯作者Wu DP(吴大朋); Guan YF(关亚风)
作者单位1.Chinese Acad Sci, Dalian Inst Chem Phys, Dept Instrumentat & Analyt Chem, Key Lab Separat Sci Analyt Chem, Dalian 116023, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100039, Peoples R China
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GB/T 7714
Liu, Jing,Wu, Dapeng,Yan, Xiaohui,et al. Naked-eye sensor for rapid determination of mercury ion[J]. TALANTA,2013,116:563-568.
APA Liu, Jing,Wu, Dapeng,Yan, Xiaohui,Guan, Yafeng,吴大朋,&关亚风.(2013).Naked-eye sensor for rapid determination of mercury ion.TALANTA,116,563-568.
MLA Liu, Jing,et al."Naked-eye sensor for rapid determination of mercury ion".TALANTA 116(2013):563-568.
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