磁性核壳荧光分子印迹的制备及其选择性检测邻苯二甲酸二辛酯的研究  

Synthesis of magnetic core-shell fluorescent molecularly imprinted polymers for selective determination of dioctyl phthalate

作　　者：车广波[1] 胡博[1,2] 齐欢 白鸽 翟天琪 王雪 高林[1,2] CHE Guang-bo;HU Bo;QI Huan;BAI Ge;ZHAI Tian-qi;WANG Xue;GAO Lin(Laboratory of Preparation and Application of Environmental Friendly Materials,Jilin Normal University,Ministry of Education,Changchun 130103,China;College of Environment Science and Engineering,Jilin Normal University,Siping 136000,China)

机构地区：[1]吉林师范大学环境友好材料制备与应用教育部重点实验室,吉林长春130103 [2]吉林师范大学环境科学与工程学院,吉林四平136000

出　　处：《吉林师范大学学报（自然科学版）》2018年第2期1-7,共7页Journal of Jilin Normal University:Natural Science Edition

基　　金：国家自然科学基金项目(21576112);吉林省自然科学基金项目(20170520143JH);中国博士后科学基金项目(2017M611732)

摘　　要：以稀土配合物Eu(MAA)_3 phen为荧光功能单体,制备了基于Fe_3O_4@SiO_2磁性纳米粒子的磁性核壳荧光分子印迹传感器并用于检测邻苯二甲酸二辛酯(DEHP),通过Eu(MAA)_3 phen与DEHP之间荧光猝灭实现检测.荧光印迹材料平均粒径为150 nm,具有超顺磁性,在0~70 nmol/L浓度范围内与DEHP具有良好的荧光线性响应,相关系数为0.995 66.印迹材料展现出对DEHP良好的选择性,弥补了稀土配合物选择性较差的问题.稀土化合物同分子印迹技术联用,可以为荧光印迹材料的设计提供新的途径.Fluorescent molecularly imprinted polymers(FMIPs)for selective determination dioctyl phthalate were devised and fabricated based on Fe3O4@SiO2 Nanoparticles.Here,Eu(MAA)3phen were used as fluorescent functional monomers via fluorescence quenching between Eu(MAA)3phen and DEHP.The FMIPs had a linear fluorescent response in 0-70 nmol/L concentration range,and the correlation coefficient was 0??995 66.The FMIPs exhibited excellent sensitivity which limit of detection low to 7.6 nmol/L.In addition,FMIPs show appreciable selectivity over several analogs as complements to europium complexes.This study demonstrated that the combination of rare earth compounds with molecular imprinting technology can provide a new way for the design of fluorescence imprinted materials.

关 键 词：核壳结构 邻苯二甲酸二辛酯 荧光分子印迹 

分 类 号：O631.3[理学—高分子化学]