期刊
TALANTA
卷 166, 期 -, 页码 300-305出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.talanta.2017.01.067
关键词
Magnetic materials; Molecularly imprinted polymers; Magnetic solid-phase extraction; Brominated flame retardants; Adsorption
资金
- National Natural Science Foundation of China [21467028, 21265019]
- Program for Innovative Research Group of Gansu Province, China [1210RJIA001]
- Key Laboratory of Polymer Materials of Gansu Province
- Key Laboratory of Ecological Environment Related Polymer Materials of Ministry of Education
Novel magnetic mesoporous molecularly imprinted polymers (MMIPs) with core-shell structure were prepared by simple surface molecular imprinting polymerization using tetrabromobisphenol-S (TBBPS) as the template. The MMIPs-TBBPS were characterized by fourier-transform infrared spectrometry (FTIR), scanning electron microscopy (SEM), transmission electron microscopy (TEM), N-2 adsorption-desorption transmission, and vibrating sample magnetometry. The resultant MMIPs-TBBPS were successfully applied magnetic solid-phase extraction (MSPE) coupled with HPLC determination of TBBPS in spiked real water samples with recoveries of 77.8-88.9%. The adsorption experiments showed that the binding capacity of MMIPs-TBBPS to TBBPS and six structural analogs were significantly higher than that of the magnetic nonimprinted polymers (MNIPs). Meanwhile, the MMIPs-TBBPS possessed rapid binding affinity, excellent magnetic response, specific selectivity and high adsorption capacity toward TBBPS with a maximum adsorption capacity of 1626.8 mu g g(-1). The analytical results indicate that the MMIPs-TBBPS are promising materials for selective separation and fast enrichment of TBBPS from complicated enviromental samples.
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