期刊
JOURNAL OF SEPARATION SCIENCE
卷 40, 期 20, 页码 3969-3975出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/jssc.201700460
关键词
endocrine disrupting chemicals; magnetic solid-phase extraction; metal-doped porous carbon; metal-organic frameworks
资金
- National Natural Science Foundation of China [31471643, 31571925, 31671930]
- Natural Science Foundation of Hebei Province [B2016204136, B2016204146, B2017204025]
- Hebei Double First Class Discipline Construction Foundation for the Discipline of Food Science and Engineering of Hebei Agricultural University [2016SPGCA18]
- Scientific and Technological Research Foundation of the Department of Education of Hebei Province [ZD2016085]
- Natural Science Foundation of Hebei Agricultural University [LG201607, LG201610]
Metal-organic frameworks-5 (MOF-5) was explored as a template to prepare porous carbon due to its high surface area, large pore volume, and permanent nanoscale porosity. Magnetic porous carbon, Co@MOF-5-C, was fabricated by the one-step direct carbonization of Co-doped MOF-5. After carbonization, the magnetic cobalt nanoparticles are well dispersed in the porous carbon matrix, and Co@MOF-5-C displays strong magnetism (with the saturation magnetization intensity of 70.17emu/g), high-specific surface area, and large pore volume. To evaluate its extraction performance, the Co@MOF-5-C was applied as an adsorbent for the magnetic solid-phase extraction of endocrine disrupting chemicals, followed by their analysis with high-performance liquid chromatography. The developed method exhibits a good linear response in the range of 0.5-100ng/mL for pond water and 1.0-100 ng/mL for juice samples. The limits of detection (S/N = 3) for the analytes were in the range of 0.1-0.2 ng/mL.
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