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学科主题: 物理化学
题名: Preparation of molecularly imprinted polymers based on magnetic carbon nanotubes for determination of sulfamethoxazole in food samples
作者: Zhao, Yingran1, 2;  Bi, Changfen1, 2;  He, Xiwen1, 2;  Chen, Langxing1, 2;  Zhang, Yukui1, 2, 3
通讯作者: 陈朗星
刊名: RSC ADVANCES
发表日期: 2015
DOI: 10.1039/c5ra13183a
卷: 5, 期:86, 页:70309-70318
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Multidisciplinary
研究领域[WOS]: Chemistry
英文摘要: In this work, we present a general method to prepare core-shell molecularly imprinted polymers (MIPs) on the surface of magnetic carbon nanotubes (MCNTs@MIP) for sulfamethoxazole (SMO). The resulting MCNTs@MIP possess a highly improved imprinting effect, fast adsorption kinetics and high adsorption capacity, and can be applied to rapidly extract sulfonamide in milk and honey samples under an external magnetic field. The morphology, adsorption capacity and recognition properties of MCNTs@MIP composites were investigated by transmission electron microscopy (TEM), Fourier transform infrared (FTIR) spectrometry, X-ray diffraction (XRD), vibrating sample magnetometry (VSM), thermogravimetric analysis (TGA), and re-binding experiments. The resulting MCNTs@MIP showed a good accessibility for the binding sites, a maximum adsorption capacity of MCNTs@MIP for SMO was 864.9 mu g g(-1), and a high selectivity toward the template molecule (SMO) in the presence of the structurally related sulfonamides (imprinting factor = 10.0). A method was developed for enrichment and determination of SMO in the milk and honey samples with recoveries ranging from 68.3 to 78.2% and 73.9 to 80.1%, respectively and relative standard deviations (RSD) < 6.8%.
关键词[WOS]: SOLID-PHASE EXTRACTION ;  PERFORMANCE LIQUID-CHROMATOGRAPHY ;  SELECTIVE EXTRACTION ;  PROTEIN RECOGNITION ;  HPLC DETERMINATION ;  WATER SAMPLES ;  SULFONAMIDES ;  SURFACE ;  NANOPARTICLES ;  MILK
语种: 英语
WOS记录号: WOS:000360404400051
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/143697
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Nankai Univ, Res Ctr Analyt Sci, Tianjin Key Lab Biosensing & Mol Recognit, Coll Chem,State Key Lab Med Chem Biol, Tianjin 300071, Peoples R China
2.Collaborat Innovat Ctr Chem Sci & Engn, Tianjin 300071, Peoples R China
3.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China

Recommended Citation:
Zhao, Yingran,Bi, Changfen,He, Xiwen,et al. Preparation of molecularly imprinted polymers based on magnetic carbon nanotubes for determination of sulfamethoxazole in food samples[J]. RSC ADVANCES,2015,5(86):70309-70318.
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