期刊
JOURNAL OF PHARMACEUTICAL AND BIOMEDICAL ANALYSIS
卷 75, 期 -, 页码 180-185出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jpba.2012.11.030
关键词
Magnetic molecularly imprinted polymer; Sample preparation; Environmental analysis; Bisphenols
资金
- Ministry of Environment
- Ministry of Education, Culture, Sports, Science and Technology, Japan [19390013]
- Grants-in-Aid for Scientific Research [19390013, 25460051, 25460050] Funding Source: KAKEN
Magnetic molecularly imprinted polymers (M-MIPs) for bisphenol A (BPA) and its structural analogues have been prepared by a multi-step swelling and polymerization method using uniformly-sized magnetic particles as a shape template. Binding experiments and Scatchard analyses revealed that two classes of binding sites were formed on M-MIPBPA. The retention and molecular-recognition properties of M-MIPs for BPA and its structural analogues were evaluated using a mixture of phosphate buffer and acetonitrile or a mixture of water and acetonitrile as a mobile phase by LC. M-MIPs for BPA and [H-2(16)]BPA (BPA-d(16)), M-MIPBPA and M-MIPBPA-d16, showed almost the same imprinting factors for BPA, while M-MIP for bisphenol B (2,2-bis(4-hydroxyphenyl)butane, BPB), M-MIPBPB, gave the moderate imprinting factor for BPA. Furthermore, M-MIPBPB was applied for the selective extraction and determination of BPA in environmental water samples. The concentration of BPA in river water samples was determined to be 68 ng/L. (C) 2012 Elsevier B.V. All rights reserved.
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