Journal
JOURNAL OF SEPARATION SCIENCE
Volume 39, Issue 10, Pages 1884-1891Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/jssc.201600097
Keywords
Chlorophenols; High-performance liquid chromatography; Magnetic porous carbon; Magnetic solid-phase extraction; Metal-organic frameworks
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Funding
- National Natural Science Foundation of China [31571925, 31471643]
- Innovation Research Program of the Department of Education of Hebei for Hebei Provincial Universities [LJRC009]
- National Natural Science Foundation of Hebei Province [B2016204136]
- Scientific and Technological Research Foundation of the Department of Education of Hebei Province [ZD2016085]
- Natural Science Foundation of Agricultural University of Hebei [ZD201405]
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A novel magnetic porous carbon derived from a bimetallic metal-organic framework, Zn/Co-MPC, was prepared by introducing cobalt into ZIF-8. Magnetic porous carbon that possesses magnetic properties and a large specific surface area was firstly fabricated by the direct carbonization of Zn/Co-ZIF-8. The prepared magnetic porous carbon material was characterized by scanning electron microscopy, transmission electron microscopy, powder X-ray diffraction, N-2 adsorption, and vibrating sample magnetometry. The prepared magnetic porous carbon was used as a magnetic solid-phase extraction adsorbent for the enrichment of chlorophenols from water and honey tea samples before high-performance liquid chromatography analysis. Several experimental parameters that could influence the extraction efficiency were investigated and optimized. Under the optimum conditions, good linearities (r > 0.9957) for all calibration curves were obtained with low limits of detection, which are in the range of 0.1-0.2 ng mL(-1) for all the analytes. The results showed that the prepared magnetic porous carbon had an excellent adsorption capability toward the target analytes.
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