Institutional Repository of Key Laboratory of Coastal Zone Environmental Processes, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences (KLCEP)
| Hg2+ ion-imprinted polymers sorbents based on dithizone-Hg2+ chelation for mercury speciation analysis in environmental and biological samples | |
Zhang, Zhong1,4; Li, Jinhua1 ; Song, Xingliang2; Ma, Jiping3; Chen, Lingxin1; Chen, LX (reprint author), Chinese Acad Sci, Yantai Inst Coastal Zone Res, Shandong Prov Key Lab Coastal Environm Proc, Key Lab Coastal Environm Processes & Ecol Remedia, Yantai 264003, Peoples R China. lxchen@yic.ac.cn
| |
| 发表期刊 | RSC ADVANCES
 |
| ISSN | 2046-2069 |
| 2014 | |
| 卷号 | 4期号:87页码:46444-46453 |
| 关键词 | Solid-phase Extraction Atomic Fluorescence Spectrometry Highly Selective Determination Water Samples Capillary-electrophoresis Absorption-spectrometry Mass Spectrometry Methyl-mercury Preconcentration Shell |
| DOI | 10.1039/c4ra08163c |
| 产权排序 | [Zhang, Zhong; Li, Jinhua; Chen, Lingxin] Chinese Acad Sci, Yantai Inst Coastal Zone Res, Shandong Prov Key Lab Coastal Environm Proc, Key Lab Coastal Environm Processes & Ecol Remedia, Yantai 264003, Peoples R China; [Song, Xingliang] Linyi Univ, Sch Chem & Chem Engn, Linyi 276005, Peoples R China; [Ma, Jiping] Qingdao Technol Univ, Sch Environm & Municipal Engn, Key Lab Environm Engn Shandong Prov, Qingdao 266033, Peoples R China; [Zhang, Zhong] Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 作者部门 | 中科院海岸带环境过程与生态修复重点实验室 |
| 英文摘要 | For mercury speciation analysis in environmental and biological samples, novel Hg2+ ion-imprinted polymers (IIPs) were synthesized by a sol-gel process using the chelating agent dithizone, and then dithizone-Hg2+ chelate as a template and 3-aminopropyltriethoxysilane as a functional monomer, followed by solid-phase extraction (SPE) and atomic fluorescence spectroscopy (AFS) detection. The resultant Hg-IIPs offered high binding capacity, fast kinetics, and their adsorption processes followed a Langmuir isotherm and pseudo-second-order kinetic models. The IIPs displayed excellent selectivity toward Hg2+ over its organic forms and other metal ions with selectivity factors of 19-34, as well as high anti-interference ability for Hg2+ confronting with common coexistent ions. Through 10 adsorption-desorption cycles, the IIPs showed a good reusability with a relative standard deviation within 5%. Moreover, because of the chelation of dithizone, the IIPs could readily discriminate Hg2+ from organic mercury. Thus, mercury speciation analysis could be attained by using IIPs-SPE-AFS, presenting high detectability of up to 0.015 mu g L-1 for Hg2+ and 0.02 mu g L-1 for organic mercury. This method was validated by using two certified reference materials with very consistent results. Satisfactory recoveries ranging from 93.0-105.2% were attained for spiked seawater and lake water samples with three concentration levels of Hg2+. Furthermore, the analytical results for the spiked mercury species in real biological samples, such as human hair and fish meat, confirmed that the methods are practically applicable to speciation analysis. The IIPs-SPE-AFS demonstrated significant application perspectives for rapid and high-effective cleanup, enrichment and determination of trace mercury species in complicated matrices.; For mercury speciation analysis in environmental and biological samples, novel Hg2+ ion-imprinted polymers (IIPs) were synthesized by a sol-gel process using the chelating agent dithizone, and then dithizone-Hg2+ chelate as a template and 3-aminopropyltriethoxysilane as a functional monomer, followed by solid-phase extraction (SPE) and atomic fluorescence spectroscopy (AFS) detection. The resultant Hg-IIPs offered high binding capacity, fast kinetics, and their adsorption processes followed a Langmuir isotherm and pseudo-second-order kinetic models. The IIPs displayed excellent selectivity toward Hg2+ over its organic forms and other metal ions with selectivity factors of 19-34, as well as high anti-interference ability for Hg2+ confronting with common coexistent ions. Through 10 adsorption-desorption cycles, the IIPs showed a good reusability with a relative standard deviation within 5%. Moreover, because of the chelation of dithizone, the IIPs could readily discriminate Hg2+ from organic mercury. Thus, mercury speciation analysis could be attained by using IIPs-SPE-AFS, presenting high detectability of up to 0.015 mu g L-1 for Hg2+ and 0.02 mu g L-1 for organic mercury. This method was validated by using two certified reference materials with very consistent results. Satisfactory recoveries ranging from 93.0-105.2% were attained for spiked seawater and lake water samples with three concentration levels of Hg2+. Furthermore, the analytical results for the spiked mercury species in real biological samples, such as human hair and fish meat, confirmed that the methods are practically applicable to speciation analysis. The IIPs-SPE-AFS demonstrated significant application perspectives for rapid and high-effective cleanup, enrichment and determination of trace mercury species in complicated matrices. |
| 文章类型 | Article |
| 资助机构 | Chemistry |
| 收录类别 | SCI |
| 语种 | 英语 |
| 关键词[WOS] | SOLID-PHASE EXTRACTION ; ATOMIC FLUORESCENCE SPECTROMETRY ; HIGHLY SELECTIVE DETERMINATION ; WATER SAMPLES ; CAPILLARY-ELECTROPHORESIS ; ABSORPTION-SPECTROMETRY ; MASS SPECTROMETRY ; METHYL-MERCURY ; PRECONCENTRATION ; SHELL |
| 研究领域[WOS] | Chemistry |
| WOS记录号 | WOS:000342761800006 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.yic.ac.cn/handle/133337/8780 |
| 专题 | 中国科学院海岸带环境过程与生态修复重点实验室 |
| 通讯作者 | Chen, LX (reprint author), Chinese Acad Sci, Yantai Inst Coastal Zone Res, Shandong Prov Key Lab Coastal Environm Proc, Key Lab Coastal Environm Processes & Ecol Remedia, Yantai 264003, Peoples R China. lxchen@yic.ac.cn |
| 作者单位 | 1.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Shandong Prov Key Lab Coastal Environm Proc, Key Lab Coastal Environm Processes & Ecol Remedia, Yantai 264003, Peoples R China 2.Linyi Univ, Sch Chem & Chem Engn, Linyi 276005, Peoples R China 3.Qingdao Technol Univ, Sch Environm & Municipal Engn, Key Lab Environm Engn Shandong Prov, Qingdao 266033, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Zhong,Li, Jinhua,Song, Xingliang,et al. Hg2+ ion-imprinted polymers sorbents based on dithizone-Hg2+ chelation for mercury speciation analysis in environmental and biological samples[J]. RSC ADVANCES,2014,4(87):46444-46453. |
| APA | Zhang, Zhong,Li, Jinhua,Song, Xingliang,Ma, Jiping,Chen, Lingxin,&Chen, LX .(2014).Hg2+ ion-imprinted polymers sorbents based on dithizone-Hg2+ chelation for mercury speciation analysis in environmental and biological samples.RSC ADVANCES,4(87),46444-46453. |
| MLA | Zhang, Zhong,et al."Hg2+ ion-imprinted polymers sorbents based on dithizone-Hg2+ chelation for mercury speciation analysis in environmental and biological samples".RSC ADVANCES 4.87(2014):46444-46453. |
| 条目包含的文件 | 下载所有文件 | |||||
| 文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
| Hg2+ ion-imprinted p（1145KB） | 开放获取 | CC BY-NC-SA | 浏览 下载 | |||
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。
修改评论