期刊
MICROCHIMICA ACTA
卷 184, 期 10, 页码 4107-4115出版社
SPRINGER WIEN
DOI: 10.1007/s00604-017-2438-2
关键词
Metal-organic framework; Magnetic carbon material; Antibiotics; HPLC
资金
- National Nature Science Foundation of China [NSFC51672116]
- Science and technology foundation of ocean and fisheries of Liaoning province [201408, 201406]
- General project of scientific research of the education department of Liaoning province [L2015206]
- Liaoning scientific instruments service sharing information platform ability construction funds [201507A003]
- Liaoning provincial department of education innovation team projects [LT2015012]
- foundation of 211 project for innovative talent training, Liaoning university
A unique waxberry-like magnetic hierarchical porous carbon hybrid was synthesized from a nickel based metal-organic framework (Ni-MOF) which, on calcination, produces hierarchical Ni/NiO nanocrystals covered with graphitic carbon (GrC). The material was applied to magnetic solid phase extraction (MSPE) of trace levels of four fluoroquinolones (FQs) from environmental water samples. It is shown to exhibit superior extraction capability for four FQs, because the novel 3D morphology provides an enhanced surface area along with transport channels, while Ni and graphitic carbon as potential adsorption sites are ideal components. The material with inherent magnetism is reusable and displays superb recycling stability for the adsorption and desorption (by using alkaline methanol) of FQs after 6 cycles. The FQs were quantified by HPLC with UV detection, and the limits of detection (at an S/N ratio of 3) range between 7.9 and 57 ng.L-1. Recoveries from spiked environmental water samples are between 88.8 and 103.7%.
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