Selective extraction of sulfonamides from food by use of silica-coated molecularly imprinted polymer nanospheres
文献类型：期刊论文
| 作者 | Gao, Ruixia1; Zhang, Junjie2; He, Xiwen1; Chen, Langxing1; Zhang, Yukui1,3 |
| 刊名 | analytical and bioanalytical chemistry
 |
| 出版日期 | 2010-09-01 |
| 卷号 | 398期号:1页码:451-461 |
| 关键词 | Molecularly imprinted polymers Nanospheres Sulfonamide antibiotics Adsorbents High-performance liquid chromatography |
| 产权排序 | 5;2 |
| 通讯作者 | 张玉奎 |
| 英文摘要 | we report the use of nanospheres prepared by coating silica with molecularly imprinted polymer (mip) for sulfamethoxazole (smo). the resulting sio(2)-smo-mip nanoparticles have highly improved imprinting and adsorption capacity, and can be used for separation and determination of sulfonamides in eggs and milk. in the synthesis, monodispersed sio(2) nanoparticles (si-np) of diameter 80 nm were amino-modified by reaction with 3-aminopropyltriethoxylsilane. the acryloyl monolayer was then grafted onto the amine-modified si-np. finally, the mip films were coated onto the surface of si-np by the copolymerization of the vinyl end groups with functional monomer (acrylamide), cross-linking agent (ethylene glycol dimethacrylate), initiator (azo-bis-isobutyronitrile), and template molecule (sulfamethoxazole). the resulting sio(2)-smo-mip-np were characterized by transmission electron microscopy, scanning electron microscopy, and fourier transform infrared spectrometry. the adsorption properties were demonstrated by equilibrium rebinding experiments and scatchard analysis. the results showed that the binding sites of the sio(2)-smo-mip were highly accessible, and the maximum adsorption capacity of the sio(2)-smo-mip for smo was 20.21 mg g(-1). the selectivity of the sio(2)-smo-mip-np obtained was elucidated by using smo and structurally related sulfonamides. the results indicated that the sio(2)-smo-mip had significant selectivity for smo. the feasibility of removing smo and sulfadiazine (sdz) from food samples was proved by use of spiked milk and eggs. a method for the separation and determination of trace smo and sdz in milk and egg samples was developed, with recoveries ranging from 69.8% to 89.1%. |
| WOS标题词 | science & technology ; life sciences & biomedicine ; physical sciences |
| 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 ; iniferter-modified supports ; mass-spectrometry ; capillary-electrophoresis ; functional monomers ; protein recognition ; surface ; nanoparticles ; residues |
| 收录类别 | SCI |
| 原文出处 | false |
| 语种 | 英语 |
| WOS记录号 | WOS:000280807500037 |
| 公开日期 | 2010-11-30 |
| 源URL | [http://159.226.238.44/handle/321008/103565]  |
| 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 Elementoorgan Chem, 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 | Gao, Ruixia,Zhang, Junjie,He, Xiwen,et al. Selective extraction of sulfonamides from food by use of silica-coated molecularly imprinted polymer nanospheres[J]. analytical and bioanalytical chemistry,2010,398(1):451-461. |
| APA | Gao, Ruixia,Zhang, Junjie,He, Xiwen,Chen, Langxing,&Zhang, Yukui.(2010).Selective extraction of sulfonamides from food by use of silica-coated molecularly imprinted polymer nanospheres.analytical and bioanalytical chemistry,398(1),451-461. |
| MLA | Gao, Ruixia,et al."Selective extraction of sulfonamides from food by use of silica-coated molecularly imprinted polymer nanospheres".analytical and bioanalytical chemistry 398.1(2010):451-461. |
入库方式： OAI收割
来源：大连化学物理研究所
浏览0
下载0
收藏0
其他版本
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。