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Novel Hg2+-imprinted polymers based on thymine-Hg2+-thymine interaction for highly selective preconcentration of Hg2+ in water samples
Xu, Shoufang1,4; Chen, Lingxin1; Li, Jinhua1; Guan, Yafeng2; Lu, Hongzhi3
关键词Ionic Imprinted Polymers Mercury Ion T-hg-t Solid-phase Extraction
刊名JOURNAL OF HAZARDOUS MATERIALS
2012-10-30
DOI10.1016/j.jhazmat.2012.08.058
237页:347-354
收录类别SCI
文章类型Article
类目[WOS]Engineering, Environmental ; Engineering, Civil ; Environmental Sciences
研究领域[WOS]Engineering ; Environmental Sciences & Ecology
关键词[WOS]SOLID-PHASE EXTRACTION ; MOLECULARLY IMPRINTED POLYMERS ; ATOMIC-ABSORPTION-SPECTROMETRY ; ELECTROCHEMICAL SENSOR ; SPECIATION ANALYSIS ; GOLD NANOPARTICLES ; AQUEOUS-SOLUTION ; MERCURY ; IONS ; RECOGNITION
英文摘要A novel functional monomer T-IPTS, 3-isocyanatopropyltriethoxysilane (IPTS) bearing thymine (T) bases, was synthesized for imprinting Hg2+. Then a novel Hg2+ ionic imprinted polymers (IIPs) based on thymine-Hg2+-thymine (T-Hg2+-T) interactions, i.e. Hg-IIPs-T, were prepared by sol-gel process for the first time in this work. The Hg-IIPs-T exhibited excellent selectivity towards Hg2+ over Cd2+, Zn2+ Pb2+, Co2+, Mn2+, Mg2+ and Ca2+, due to the specific T-Hg2+-T interactions with high selectivity and high affinity. Accordingly, Hg-IIPs-T were used as solid-phase extraction (SPE) sorbents for preconcentration of trace Hg2+ in water samples, and satisfactory recoveries ranging from 95.2 to 116.3% were obtained. Also, under optimized conditions, preconcentration factor and detection limit were achieved of 200 and 0.03 mu g L-1, respectively. The IIPs-T-SPE proved to be a rapid and high-effective cleanup and enrichment method for trace Hg2+ in water samples. More importantly, these results indicated that devising and synthesizing new functional monomers tailor-made for template would become a general promising way to improve the selectivity and stability of IIPs. 2012 Elsevier B.V. All rights reserved.
语种英语
WOS记录号WOS:000310257100043
引用统计
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/142926
专题中国科学院大连化学物理研究所
作者单位1.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Zone Environm Proc, Yantai 264003, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, Dept Instrumentat & Analyt Chem, Key Lab Separat Sci Analyt Chem CAS, Dalian 116023, Peoples R China
3.Linyi Univ, Sch Chem & Chem Engn, Linyi 276005, Peoples R China
4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
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Xu, Shoufang,Chen, Lingxin,Li, Jinhua,et al. Novel Hg2+-imprinted polymers based on thymine-Hg2+-thymine interaction for highly selective preconcentration of Hg2+ in water samples[J]. JOURNAL OF HAZARDOUS MATERIALS,2012,237:347-354.
APA Xu, Shoufang,Chen, Lingxin,Li, Jinhua,Guan, Yafeng,&Lu, Hongzhi.(2012).Novel Hg2+-imprinted polymers based on thymine-Hg2+-thymine interaction for highly selective preconcentration of Hg2+ in water samples.JOURNAL OF HAZARDOUS MATERIALS,237,347-354.
MLA Xu, Shoufang,et al."Novel Hg2+-imprinted polymers based on thymine-Hg2+-thymine interaction for highly selective preconcentration of Hg2+ in water samples".JOURNAL OF HAZARDOUS MATERIALS 237(2012):347-354.
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