中国科学院大连化学物理研究所机构知识库
Advanced  
DICP OpenIR  > 中国科学院大连化学物理研究所  > 期刊论文
学科主题: 物理化学
题名: 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
作者: Kong, Xuan1, 2;  Gao, Ruixia1, 2;  He, Xiwen1, 2;  Chen, Langxing1, 2;  Zhang, Yukui1, 2, 3
通讯作者: 陈朗星
关键词: Magnetic nanoparticles ;  Molecularly imprinted polymers (MIPs) ;  Sulfonamide ;  Poultry feed
刊名: JOURNAL OF CHROMATOGRAPHY A
发表日期: 2012-07-06
DOI: 10.1016/j.chroma.2012.04.061
卷: 1245, 页:8-16
收录类别: SCI
文章类型: Article
部门归属: 18
项目归属: 1810
产权排名: 3,5
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
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.
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
语种: 英语
WOS记录号: WOS:000305846500002
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/117841
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

Files in This Item: Download All
File Name/ File Size Content Type Version Access License
2012Txa9cezYZH.PDF(1154KB)----开放获取--View Download

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

Recommended Citation:
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.
Service
 Recommend this item
 Sava as my favorate item
 Show this item's statistics
 Export Endnote File
Google Scholar
 Similar articles in Google Scholar
 [Kong, Xuan]'s Articles
 [Gao, Ruixia]'s Articles
 [He, Xiwen]'s Articles
CSDL cross search
 Similar articles in CSDL Cross Search
 [Kong, Xuan]‘s Articles
 [Gao, Ruixia]‘s Articles
 [He, Xiwen]‘s Articles
Related Copyright Policies
Null
Social Bookmarking
  Add to CiteULike  Add to Connotea  Add to Del.icio.us  Add to Digg  Add to Reddit 
文件名: 2012Txa9cezYZH.PDF
格式: Adobe PDF
此文件暂不支持浏览
所有评论 (0)
暂无评论
 
评注功能仅针对注册用户开放,请您登录
您对该条目有什么异议,请填写以下表单,管理员会尽快联系您。
内 容:
Email:  *
单位:
验证码:   刷新
您在IR的使用过程中有什么好的想法或者建议可以反馈给我们。
标 题:
 *
内 容:
Email:  *
验证码:   刷新

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.

 

 

Valid XHTML 1.0!
Powered by CSpace