Preparation of magnetic multi-functional molecularly imprinted polymer beads for determining environmental estrogens in water samples
Preparation of magnetic multi-functional molecularly imprinted polymer beads for determining environmental estrogens in water samples
复制标题
磁性多功能分子印迹聚合物微球的制备用于测定水样中的环境雌激素
DOI：
10.1016/j.jhazmat.2013.02.041
复制
发表时间：
2013-05-15
影响因子：
13.6
通讯作者：
Huang, Changjiang
中科院分区：
文献类型：
--
作者：
Lin, Zhenkun;He, Qiaoya;Huang, Changjiang
制备了磁性多功能分子印迹聚合物(MAG-MFMIP)小球，用于测定水样中的环境雌激素。该材料以超顺磁性微粒为载体，17β-雌二醇(E_2)为印迹模板，可同时识别多种环境雌激素。表征分析和结合实验表明，MAG-MFMIP小球具有优异的磁性、大的吸附容量和对大多数常见环境雌激素的高竞争选择性。采用MAG-MFMIP小球作为分散固相萃取(SPE)吸附剂，对水样中雌三醇(E3)、双酚A(BPA)、雌二醇(E2)和乙炔雌二醇(EE)的加标回收率分别为72.2~92.1%、89.3~96.0%、93.3~102%和89.7~95.9%，相对标准偏差(RSD)<7.0%。这些结果表明，MAG-MFMIP小球有可能成为多种环境雌激素的通用吸附剂，代表了MIP在环境化学领域的新应用。(C)2013爱思唯尔B.V.保留所有权利。
Magnetic multi-functional molecularly imprinted polymer (mag-MFMIP) beads were prepared for determining environmental estrogens in water samples. This novel material adopted a superparamagnetic microparticle as the supporter and used 17 beta-estradiol (E2) as the imprinting template, aiming for recognizing many kinds of environmental estrogens simultaneously. Characterization analysis and binding experiments revealed that mag-MFMIP beads had outstanding magnetic property, large adsorption capacity and high competitive selectivity to most of the commonly seen environmental estrogens. When mag-MFMIP beads were used as dispersed solid-phase extraction (SPE) adsorbents in water samples, the recoveries of estriol (E3), bisphenol A (BPA), E2 and ethynylestradiol (EE) were 72.2 - 92.1%, 89.3 - 96.0%, 93.3 - 102% and 89.7 - 95.9%, respectively with relative standard deviation (RSD) lower than 7.0%. These results indicated that mag-MFMIP beads had the potential to be the common adsorbents for many kinds of environmental estrogens, representing a novel application of MIPs in the field of environmental chemistry. (c) 2013 Elsevier B.V. All rights reserved.