现代食品科技2017，Vol.33Issue(10)：157-163,7.DOI:10.13982/j.mfst.1673-9078.2017.10.023
甲基对硫磷纳米二氧化硅表面分子印迹聚合物的制备及吸附特性研究
Synthesis of Surface Molecular Imprinted Polymer Based on Silica Nanoparticles and Adsorption Properties of Methyl Parathion
李伟明 1谭磊 2岑水斌 3汤又文 4吴晖1
作者信息
- 1. 华南理工大学食品科学与工程学院,广东广州510641
- 2. 广州市疾病预防控制中心,广东广州510440
- 3. 华南理工大学化学与化工学院,广东广州510641
- 4. 华南师范大学化学与环境学院,广东广州510631
- 折叠
摘要
Abstract
Hybrid organic-inorganic surface imprinted silica nanoparticles for specific recognition of methyl parathion was prepared by molecular imprinting technique,We molecularly imprinted silica nanoparticles in chloroform by using amino modified silica nanoparticles as the supports,acrylamide as the functional monomer,γ-methacryloxypropyl trimethoxy silane as the grafting agent,and methyl parathion as a template.The amino propyl functional monomer could not only selectively polymerize on silicon surface,but also as an assistive monomer to drive the template agent into the formed shell structure to produce effective specific recognition sites.The resultant MIPs-SiO2 nanoparticles display a three-dimensional core-shell structure and a large surface area.The molecularly imprinted polymer shell structure provided recognition sites for methyl parathion,making it have a strong selective adsorption capacity for the template,Traces of methyl parathion were selectively extracted from green vegetable and pear samples using MIPs-SiO2 nanoparticles as the sorbents of solid-phase dispersion extraction with recoveries of 84.7～94.4％.关键词
分子印迹/固相分散萃取/核壳结构/甲基对硫磷Key words
molecularly imprinted/solid-phase dispersion extraction/core-shell nanoparticles/methyl parathion引用本文复制引用
李伟明,谭磊,岑水斌,汤又文,吴晖..甲基对硫磷纳米二氧化硅表面分子印迹聚合物的制备及吸附特性研究[J].现代食品科技,2017,33(10):157-163,7.
