Synthesis of surface molecularly imprinted silica micro-particles in aqueous solution and the usage for selective off-line solid-phase extraction of 2,4-dinitrophenol from water matrixes
文献类型：期刊论文
| 作者 | Luo, Wei1; Zhu, Lihua1; Yu, Chen1; Tang, Heqing1; Yu, Hongxia2; Li, Xue3; Zhang, Xu3 |
| 刊名 | ANALYTICA CHIMICA ACTA
 |
| 出版日期 | 2008-06-23 |
| 卷号 | 618期号:2页码:147-156 |
| 关键词 | molecularly imprinted polymer synthesis solid-phase extraction 2 high-performance liquid chromatography 4-dinitrophenol |
| 英文摘要 | Very severe reaction conditions are required in the conventional synthesis of molecularly imprinted polymers (MIPs), which is unfavorable to their applications in chemical separation and analysis. A simple surface molecular imprinting approach was developed to synthesize MIP-coated SiO2 micro-particles in aqueous solutions. The H-1 NMR and UV-vis spectroscopic analysis indicated that via hydrogen bonding, the functional monomer (o-phenylenediamine) can associate with the target (template) 2,4-dinitrophenol (2,4-DNP), as a model compound of organic pollutants, to form a precursor in aqueous solution. The copolymerization of this precursor and the free monomer was performed in the aqueous suspension of surface modified SiO2 particles, leading to the formation of MIP-coated SiO2 micro-particles. The MIP-coated silica particles were characterized with FT-IR, TGA, and UV-vis solid-state reflection spectroscopy, and were further demonstrated to have high adsorption capacity, excellent selectivity and site accessibility for 2,4-DNP. The new absorbent was successfully used in solid-phase extraction (SPE) to selectively enrich and determine 2,4-DNP in aqueous samples. The experimental results indicated that the MIP-SPE column yielded recoveries higher than 92% with R.S.D. <2.8%, much better than the commercial C-18-SPE column, which produced a recovery less than 30% with R.S.D. <3.0%. (c) 2008 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] | PERFORMANCE LIQUID-CHROMATOGRAPHY ; POLYMER-FILMS ; WASTE-WATER ; NANOPARTICLES ; CHALLENGES ; SORBENT ; ANILINE |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000257004400004 |
| 公开日期 | 2015-10-13 |
| 源URL | [http://ir.wipm.ac.cn/handle/112942/8075]  |
| 专题 | 武汉物理与数学研究所_2011年以前论文发表（包括2011年） |
| 作者单位 | 1.Huazhong Univ Sci & Technol, Dept Chem & Chem Engn, Wuhan 430074, Peoples R China 2.Nanjing Univ, Coll Environm Sci & Engn, Nanjing 210093, Peoples R China 3.Chinese Acad Sci, Wuhan Inst Phys & Math, Wuhan 430071, Peoples R China |
| 推荐引用方式 GB/T 7714 | Luo, Wei,Zhu, Lihua,Yu, Chen,et al. Synthesis of surface molecularly imprinted silica micro-particles in aqueous solution and the usage for selective off-line solid-phase extraction of 2,4-dinitrophenol from water matrixes[J]. ANALYTICA CHIMICA ACTA,2008,618(2):147-156. |
| APA | Luo, Wei.,Zhu, Lihua.,Yu, Chen.,Tang, Heqing.,Yu, Hongxia.,...&Zhang, Xu.(2008).Synthesis of surface molecularly imprinted silica micro-particles in aqueous solution and the usage for selective off-line solid-phase extraction of 2,4-dinitrophenol from water matrixes.ANALYTICA CHIMICA ACTA,618(2),147-156. |
| MLA | Luo, Wei,et al."Synthesis of surface molecularly imprinted silica micro-particles in aqueous solution and the usage for selective off-line solid-phase extraction of 2,4-dinitrophenol from water matrixes".ANALYTICA CHIMICA ACTA 618.2(2008):147-156. |
入库方式： OAI收割
来源：武汉物理与数学研究所
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