Synthesis and characterization of the core-shell magnetic molecularly imprinted polymers (Fe3O4@MIPs) adsorbents for effective extraction and determination of sulfonamides in the poultry feed
文献类型：期刊论文
| 作者 | Kong, Xuan1,2; Gao, Ruixia1,2; He, Xiwen1,2; Chen, Langxing1,2; Zhang, Yukui1,2,3 |
| 刊名 | journal of chromatography a
 |
| 出版日期 | 2012-07-06 |
| 卷号 | 1245页码:8-16 |
| 关键词 | Magnetic nanoparticles Molecularly imprinted polymers (MIPs) Sulfonamide Poultry feed |
| 产权排序 | 3,5 |
| 通讯作者 | 陈朗星 |
| 英文摘要 | in this study, we present a general method to prepare the core-shell magnetic molecularly imprinted polymers (mips) nanoparticles (nps) for sulfamethazine (smz). the resulting fe3o4@mips nps possess a highly improved imprinting effect, fast adsorption kinetics and high adsorption capacity, and can be applied to extract sulfonamide in the poultry feed. in this protocol, the magnetite nps were synthesized by co-precipitating fe2+ and fe3+ in an ammonia solution first. silica was then coated on the fe3o4 nps using a sol-gel method to obtain silica shell magnetic nps. subsequently, the vinyl groups were grated onto silica-modified fe3o4 surface by 3-methacryloyloxypropyltrimethoxysilane. finally, the mips films were formed on the surface of fe3o4@sio2 by the copolymerization of vinyl end groups with functional monomer, methacrylic acid, cross-linking agent, ethylene glycol dimethacrylate, the initiator azo-bis-isobutyronitrile and template molecule, sulfamethazine. the morphology, magnetic, adsorption and recognition properties of fe3o4@mips nps were characterized using transmission electron microscope (tem), scanning electron microscope (sem), fourier transform infrared (ft-ir) spectrometer, vibrating sample magnetometer (vsm) and re-binding experiments. the results showed that the binding sites of fe3o4@mips were good accessibility, fast adsorption rate and the maximum adsorption capacity of fe3o4@mips to smz was 344.8 mu g g(-1). the selectivity of the obtained fe3o4@mips nps were elucidated by the different rebinding capability of smz and structural related sulfonamides in the mixed solution. the results indicated that the fe3o4@mips had high imprinting factor 9.5 and significant selectivity. a method was developed for enrichment and determination of smz in the poultry feed samples with recoveries of duck and chicken feed ranging from 63.3 to 76.5% and 68.7 to 74.7%, respectively and the relative standard deviations (rsd) (<6.7%). (c) 2012 elsevier b.v. all rights reserved. |
| WOS标题词 | science & technology ; life sciences & biomedicine ; physical sciences |
| 学科主题 | 物理化学 |
| 类目[WOS] | biochemical research methods ; chemistry, analytical |
| 研究领域[WOS] | biochemistry & molecular biology ; chemistry |
| 关键词[WOS] | solid-phase extraction ; performance liquid-chromatography ; bovine hemoglobin ; mass-spectrometry ; water samples ; protein recognition ; selective removal ; sorbent assays ; trace analysis ; nanoparticles |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000305846500002 |
| 公开日期 | 2013-10-11 |
| 源URL | [http://159.226.238.44/handle/321008/117841]  |
| 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.Nankai Univ, Dept Chem, Tianjin 300071, Peoples R China 2.Nankai Univ, State Key Lab Med Chem Biol, Tianjin 300071, Peoples R China 3.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116011, Peoples R China |
| 推荐引用方式 GB/T 7714 | Kong, Xuan,Gao, Ruixia,He, Xiwen,et al. Synthesis and characterization of the core-shell magnetic molecularly imprinted polymers (Fe3O4@MIPs) adsorbents for effective extraction and determination of sulfonamides in the poultry feed[J]. journal of chromatography a,2012,1245:8-16. |
| APA | Kong, Xuan,Gao, Ruixia,He, Xiwen,Chen, Langxing,&Zhang, Yukui.(2012).Synthesis and characterization of the core-shell magnetic molecularly imprinted polymers (Fe3O4@MIPs) adsorbents for effective extraction and determination of sulfonamides in the poultry feed.journal of chromatography a,1245,8-16. |
| MLA | Kong, Xuan,et al."Synthesis and characterization of the core-shell magnetic molecularly imprinted polymers (Fe3O4@MIPs) adsorbents for effective extraction and determination of sulfonamides in the poultry feed".journal of chromatography a 1245(2012):8-16. |
入库方式： OAI收割
来源：大连化学物理研究所
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