期刊
JOURNAL OF HAZARDOUS MATERIALS
卷 252, 期 -, 页码 57-63出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jhazmat.2013.02.041
关键词
Environmental estrogen; Molecularly imprinted polymer; Superparamagnetic; Dispersed adsorbent; Water sample
资金
- National Natural Science Foundation of China [21107083, 21077079]
- Zhejiang Province Welfare Technology Applied Research Project [2011C23115]
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.
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