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| Preparation and Characterization of Superparamagnetic Molecularly Imprinted Polymers for Selective Adsorption and Separation of Vanillin in Food Samples | |
Ning, Fangjian1; Peng, Hailong1,2; Dong, Liling1; Zhang, Zhong3; Li, Jinhua3 ; Chen, Lingxin3; Xiong, Hua1; Peng, HL (reprint author), Nanchang Univ, State Key Lab Food Sci & Technol, Nanchang 330047, Jiangxi, Peoples R China. peng_hailong@aliyun.com; huaxiong100@126.com
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| 发表期刊 | JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
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| ISSN | 0021-8561 |
| 2014-11-19 | |
| 卷号 | 62期号:46页码:11138-11145 |
| 关键词 | Superparamagnetism Water-compatible Magnetic Molecularly Imprinted Polymers Vanillin Selective Adsorption |
| DOI | 10.1021/jf504144g |
| 产权排序 | [Ning, Fangjian; Peng, Hailong; Dong, Liling; Xiong, Hua] Nanchang Univ, State Key Lab Food Sci & Technol, Nanchang 330047, Jiangxi, Peoples R China; [Peng, Hailong] Nanchang Univ, Dept Chem Engn, Nanchang 330031, Jiangxi, Peoples R China; [Zhang, Zhong; Li, Jinhua; Chen, Lingxin] Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai 264003, Shandong, Peoples R China |
| 作者部门 | 中科院海岸带环境过程与生态修复重点实验室 |
| 英文摘要 | Novel water-compatible superparamagnetic molecularly imprinted polymers (M-MIPs) were prepared by coating superparamagnetic Fe3O4 nanoparticles with MIPs in a methanol-water reaction system. The M-MIPs were used for the selective adsorption and separation of vanillin from aqueous solution. The M-MIPs were characterized by X-ray powder diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy, thermogravimetric analysis (TGA), vibrating sample magnetometry (VSM), and scanning electron microscopy (SEM). Results indicated that a core shell structure of M-MIPs was obtained by coating a layer of silica and MIPs on the surface of the Fe3O4 nanoparticles. The obtained M-MIPs possess a loose and porous structure and can be rapidly separated from the solution using a magnet. The adsorption experiments showed that the binding capacity of the M-MIPs was significantly higher than that of the superparamagnetic non-molecularly imprinted polymers (M-NIPs). Meanwhile, the adsorption of M-MIP's reached equilibrium within 100 min, and the apparent maximum adsorption quantity (Q(max)) and dissociation constant (K-d) were 64.12 mu mol g(-1) and 58.82 mu mol L-1, respectively. The Scatchard analysis showed that homogeneous binding sites were formed on the M-MIP surface. The recoveries of 83.39-95.58% were achieved when M-MIPs were used for the pre-concentration and selective separation of vanillin in spiked food samples. These results provided the possibility for the separation and enrichment of vanillin from complicated food matrices by M-MIPs.; Novel water-compatible superparamagnetic molecularly imprinted polymers (M-MIPs) were prepared by coating superparamagnetic Fe3O4 nanoparticles with MIPs in a methanol-water reaction system. The M-MIPs were used for the selective adsorption and separation of vanillin from aqueous solution. The M-MIPs were characterized by X-ray powder diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy, thermogravimetric analysis (TGA), vibrating sample magnetometry (VSM), and scanning electron microscopy (SEM). Results indicated that a core shell structure of M-MIPs was obtained by coating a layer of silica and MIPs on the surface of the Fe3O4 nanoparticles. The obtained M-MIPs possess a loose and porous structure and can be rapidly separated from the solution using a magnet. The adsorption experiments showed that the binding capacity of the M-MIPs was significantly higher than that of the superparamagnetic non-molecularly imprinted polymers (M-NIPs). Meanwhile, the adsorption of M-MIP's reached equilibrium within 100 min, and the apparent maximum adsorption quantity (Q(max)) and dissociation constant (K-d) were 64.12 mu mol g(-1) and 58.82 mu mol L-1, respectively. The Scatchard analysis showed that homogeneous binding sites were formed on the M-MIP surface. The recoveries of 83.39-95.58% were achieved when M-MIPs were used for the pre-concentration and selective separation of vanillin in spiked food samples. These results provided the possibility for the separation and enrichment of vanillin from complicated food matrices by M-MIPs. |
| 文章类型 | Article |
| 资助机构 | Agriculture ; Chemistry ; Food Science & Technology |
| 收录类别 | SCI |
| 语种 | 英语 |
| 关键词[WOS] | SOLID-PHASE EXTRACTION ; LIQUID-CHROMATOGRAPHY ; GAS-CHROMATOGRAPHY ; MASS-SPECTROMETRY ; ETHYL VANILLIN ; NANOPARTICLES ; RECOGNITION ; 17-BETA-ESTRADIOL ; ADSORBENT ; TEMPLATE |
| 研究领域[WOS] | Agriculture ; Chemistry ; Food Science & Technology |
| WOS记录号 | WOS:000345309100016 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.yic.ac.cn/handle/133337/8691 |
| 专题 | 中国科学院海岸带环境过程与生态修复重点实验室 |
| 通讯作者 | Peng, HL (reprint author), Nanchang Univ, State Key Lab Food Sci & Technol, Nanchang 330047, Jiangxi, Peoples R China. peng_hailong@aliyun.com; huaxiong100@126.com |
| 作者单位 | 1.Nanchang Univ, State Key Lab Food Sci & Technol, Nanchang 330047, Jiangxi, Peoples R China 2.Nanchang Univ, Dept Chem Engn, Nanchang 330031, Jiangxi, Peoples R China 3.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai 264003, Shandong, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ning, Fangjian,Peng, Hailong,Dong, Liling,et al. Preparation and Characterization of Superparamagnetic Molecularly Imprinted Polymers for Selective Adsorption and Separation of Vanillin in Food Samples[J]. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY,2014,62(46):11138-11145. |
| APA | Ning, Fangjian.,Peng, Hailong.,Dong, Liling.,Zhang, Zhong.,Li, Jinhua.,...&huaxiong100@126.com.(2014).Preparation and Characterization of Superparamagnetic Molecularly Imprinted Polymers for Selective Adsorption and Separation of Vanillin in Food Samples.JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY,62(46),11138-11145. |
| MLA | Ning, Fangjian,et al."Preparation and Characterization of Superparamagnetic Molecularly Imprinted Polymers for Selective Adsorption and Separation of Vanillin in Food Samples".JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 62.46(2014):11138-11145. |
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