Hg2+ ion-imprinted polymers sorbents based on dithizone-Hg2+ chelation for mercury speciation analysis in environmental and biological samples

CORC > 烟台海岸带研究所 > 中国科学院烟台海岸带研究所 > 中科院海岸带环境过程与生态修复重点实验室

	Hg2+ ion-imprinted polymers sorbents based on dithizone-Hg2+ chelation for mercury speciation analysis in environmental and biological samples
	Zhang, Zhong 1,4; Li, Jinhua1 ; Song, Xingliang 2; Ma, Jiping 3; Chen, Lingxin1
刊名	RSC ADVANCES
	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
ISSN号	2046-2069
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
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
中文摘要	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.
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.
学科主题	Chemistry, Multidisciplinary
研究领域[WOS]	Chemistry
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
收录类别	SCI
语种	英语
WOS记录号	WOS:000342761800006
内容类型	期刊论文
源URL	[http://ir.yic.ac.cn/handle/133337/8780]
专题	烟台海岸带研究所_中科院海岸带环境过程与生态修复重点实验室
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.(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.