期刊论文

中文

中山大学学报(自然科学版)(中英文)

0529-6579

2015

54

5

72-76

10.13471/j.cnki.acta.snus.2015.05.015

国家自然科学基金资助项目（21472038）；

本校为其他机构

以2,4 -二氯苯氧乙酸(2,4 -D)为模板分子,甲基丙烯酸(MAA)为功能单体,Fe_3O_4为磁性载体,采用乳液聚合方法制备了相应的磁性分子印迹聚合物(Mag-MIPs)。采用透射电镜(TEM)、热重分析(TG)等对Mag-MIPs进行了一系列表征。吸附实验表明该磁性印迹聚合物对2,4 -D的吸附能力明显强于非印迹聚合物。采用Mag-MIPs为固相萃取材料,结合高效液相色谱分析,对质量浓度约为50 μg·L~(-1)模拟水样中的2,4 -D进行了分析检测,样品回收率范围为91.7% ~110.4%,相对平均偏差为7.38%(n =3)。

In this work, the magnetic molecularly imprinted polymers (Mag-MIPs) based on Fe3O4 magnetite were prepared using 2,4-dichlorophenoxyacetic acid (2,4-D) as a template molecule. The morphological and magnetic characteristics of the Mag-MIPs were characterized by transmission electron microscopy (TEM), fourier transform infrared spectrometer (FT-IR), and vibrating sample magnetometry (VSM). The specific adsorption property was studied using binding experiment. The result showed that Mag-MIPs had higher recognition for the template than the non-im...