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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Li, Jianwen Ma, Jinkui Wei, Shoulian Liu, Yong |
| Description | Country affiliation: China Author Affiliation: Wei S ( College of Chemistry and Chemical Engineering, Zhaoqing University, Duanzhou District, Zhaoqing, Guangdong, 526061, China.); Li J ( Department of Chinese Medicine and Biology, Guangdong Food and Drug Vocational College, Guangzhou 510520, China.); Liu Y ( College of Chemistry and Chemical Engineering, Zhaoqing University, Duanzhou District, Zhaoqing, Guangdong, 526061, China.); Ma J ( College of Chemistry and Chemical Engineering, Zhaoqing University, Duanzhou District, Zhaoqing, Guangdong, 526061, China. Electronic address: jinkuima@gmail.com.) |
| Abstract | A magnetic mesoporous dual-template molecularly imprinted polymer (Fe O @mSiO @DMIP) with a specific recognition capability for chloramphenicol (CAP) and florfenicol (FF) was synthesised. CAP and FF were used as dual-template molecules, -methacrylic acid and Fe O @mSiO @-CHCH as dual functional monomers, and ethylene glycol dimethyl methacrylate as a crosslinking agent. For comparison, a magnetic mesoporous non-molecularly imprinted polymer (Fe O @mSiO @NIP) was also prepared using the same synthesis procedure, but without the dual templates. The prepared polymers were characterised using scanning electron microscopy, Fourier-transform infrared spectroscopy and adsorption experiments. Results indicated that both the Fe O @mSiO @DMIP and the Fe O @mSiO @NIP were microspherical nanoparticles, and the surface of the Fe O @mSiO @DMIP was rougher than that of the Fe O @mSiO @NIP. In addition, the prepared Fe O @mSiO @DMIP possessed a higher adsorption capacity and better selectivity for CAP and FF than the Fe O @mSiO @NIP. The maximum static adsorption capacities of the Fe O @mSiO @ DMIP for CAP and FF were 146.5 and 190.1mgg , respectively, whereas those of the Fe O @mSiO @NIP were 50.0 and 44.0mgg , respectively. The obtained Fe O @mSiO @DMIP particles were applied as a magnetic solid-phase extraction sorbent for the rapid and selective extraction of CAP, FF, and thiamphenicol (TAP) in water, chicken blood and egg samples. The method of magnetic molecularly imprinted solid-phase extraction (M-MISPE) coupled to high-performance liquid chromatography with UV detection (HPLC-UV) was conducted to detect CAP, FF, and TAP. The limits of detection for CAP, FF, and TAP were 0.16, 0.08, and 0.08µgkg , respectively. The average recovery and precision values for the spiked water, chicken blood, and egg samples ranged from 88.3% to 99.1% and 2.7% to 7.9%, respectively. Given its rapidity, selectivity, and sensitivity, the developed method of M-MISPE coupled to HPLC-UV detection has good application prospects in environmental, biological, and food samples. |
| ISSN | 00219673 |
| Journal | Journal of Chromatography A |
| Volume Number | 1473 |
| e-ISSN | 18733778 |
| Language | English |
| Publisher | Elsevier |
| Publisher Date | 2016-11-18 |
| Publisher Place | Netherlands |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Discipline Analytical Chemistry |
| Content Type | Text |
| Resource Type | Article |
| Subject | Organic Chemistry Medicine Analytical Chemistry Biochemistry |
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