Preparation and Characterization of Superparamagnetic Molecularly Imprinted Polymers for Selective Adsorption and Separation of Vanillin in Food Samples

CORC > 烟台海岸带研究所 > 中国科学院烟台海岸带研究所 > 中科院海岸带环境过程与生态修复重点实验室

	Preparation and Characterization of Superparamagnetic Molecularly Imprinted Polymers for Selective Adsorption and Separation of Vanillin in Food Samples
	Ning, Fangjian 1; Peng, Hailong 1,2; Dong, Liling 1; Zhang, Zhong 3; Li, Jinhua3 ; Chen, Lingxin3 ; Xiong, Hua 1
刊名	JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
	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
ISSN号	0021-8561
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
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
中文摘要	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.
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.
学科主题	Agriculture, Multidisciplinary; Chemistry, Applied; Food Science & Technology
研究领域[WOS]	Agriculture ; Chemistry ; Food Science & Technology
关键词[WOS]	SOLID-PHASE EXTRACTION ; LIQUID-CHROMATOGRAPHY ; GAS-CHROMATOGRAPHY ; MASS-SPECTROMETRY ; ETHYL VANILLIN ; NANOPARTICLES ; RECOGNITION ; 17-BETA-ESTRADIOL ; ADSORBENT ; TEMPLATE
收录类别	SCI
语种	英语
WOS记录号	WOS:000345309100016
内容类型	期刊论文
源URL	[http://ir.yic.ac.cn/handle/133337/8691]
专题	烟台海岸带研究所_中科院海岸带环境过程与生态修复重点实验室
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.,...&Xiong, Hua.(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.