Dispersive liquid-liquid microextraction of trace Hg2+ for visual and fluorescence test
文献类型：期刊论文
| 作者 | Liu, Jing1,2; Wu, Dapeng1; Duan, Chunfeng1; Guan, Yafeng1 |
| 刊名 | talanta
 |
| 出版日期 | 2013-02-15 |
| 卷号 | 105页码:87-92 |
| 关键词 | Mercuric ion Preconcentration Visual Fluorescence |
| 英文摘要 | in this work, trace hg2+ in environmental water samples was first preconcentrated by dispersive liquid-liquid microextraction (dllme), and then was colorated by one common rhodamine b thiolactone (rbt) probe for visual and fluorescence detection. in this way, a highly sensitive and selective method was developed for field monitoring of hg2+ in environmental waters. the color of rbt test solution could change clearly from colorless to pink around the level of 2 mu g l-1 hg2+, which just meets with the maximum residue level of hg2+ in drinking water recommended by u.s. epa, so the water samples with hg2+ concentration over 2 mu g l-1 could be selected rapidly by naked eye. moreover, the quantification of hg2+ could be obtained by fluorescence detection of test solution. the best extraction efficiency of hg2+ by dlllme could be obtained by using 200 ml water sample (ph 5.0, 50 degrees c), 150 mu l extraction solvent (lauric acid, la) and 3 ml dispersive solvent (methanol). thus an enrichment factor of similar to 407 and the limit of fluorescence detection of 0.03 mu g l-1 could be achieved. the method was also highly selective for hg2+ with tolerance to at least 1000-fold of the foreign metal ions. this method was successfully applied to detect hg2+ in deionized water, tap water and sea water. (c) 2012 elsevier b.v. all rights reserved. |
| WOS标题词 | science & technology ; physical sciences |
| 类目[WOS] | chemistry, analytical |
| 研究领域[WOS] | chemistry |
| 关键词[WOS] | atomic-absorption-spectrometry ; mercury determination ; samples ; water ; preconcentration ; chemodosimeter ; remediation ; extraction ; ions |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000319088500015 |
| 公开日期 | 2015-11-10 |
| 源URL | [http://159.226.238.44/handle/321008/137705]  |
| 专题 | 大连化学物理研究所_中国科学院大连化学物理研究所 |
| 作者单位 | 1.Chinese Acad Sci, Dalian Inst Chem Phys, Key Lab Separat Sci Analyt Chem, Dept Instrumentat & Analyt Chem, Dalian 116023, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Jing,Wu, Dapeng,Duan, Chunfeng,et al. Dispersive liquid-liquid microextraction of trace Hg2+ for visual and fluorescence test[J]. talanta,2013,105:87-92. |
| APA | Liu, Jing,Wu, Dapeng,Duan, Chunfeng,&Guan, Yafeng.(2013).Dispersive liquid-liquid microextraction of trace Hg2+ for visual and fluorescence test.talanta,105,87-92. |
| MLA | Liu, Jing,et al."Dispersive liquid-liquid microextraction of trace Hg2+ for visual and fluorescence test".talanta 105(2013):87-92. |
入库方式： OAI收割
来源：大连化学物理研究所
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