用于环境水样中全氟化合物的磁性固相萃取的离子共价有机骨架。
Ionic covalent organic frameworks for the magnetic solid-phase extraction of perfluorinated compounds in environmental water samples.
机构信息
Key Laboratory for Applied Technology of Sophisticated Analytical Instrument of Shandong Province, Shandong Analysis and Test Center, Qilu University of Technology (Shandong Academy of Science), Jinan, 250014, People's Republic of China.
School of Environmental Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, People's Republic of China.
出版信息
Mikrochim Acta. 2021 Jan 22;188(2):47. doi: 10.1007/s00604-021-04703-6.
A novel magnetic ionic covalent organic framework (FeO@EB-iCOFs) was designed and synthesized. It was then characterized by X-ray diffraction, N adsorption-desorption analysis, and magnetic measurements, among others. The material shows the advantages of ionic property, large surface area, and magnetic responsiveness. It has potential of magnetic solid-phase extraction (MSPE) of perfluorinated compounds (PFCs). A method for the determination of PFCs based on MSPE-HPLC-MS/MS was established. The method has excellent linearity (r ≥ 0.995) in the working range 1-1000 ng L , good repeatability (1.4-5.8%, n = 6), low limits of detection in the range 0.1-0.8 ng L and satisfactory recoveries (between 73.9 and 108.3%).
设计并合成了一种新型磁性离子共价有机框架（FeO@EB-iCOFs）。通过 X 射线衍射、N 吸附-解吸分析和磁性测量等手段对其进行了表征。该材料具有离子特性、大表面积和磁响应的优点。它具有用于全氟化合物（PFCs）的磁性固相萃取（MSPE）的潜力。建立了基于 MSPE-HPLC-MS/MS 的 PFCs 测定方法。该方法在工作范围内 1-1000ng L 内具有优异的线性（r≥0.995），良好的重复性（1.4-5.8%，n=6），检测限在 0.1-0.8ng L 范围内较低，回收率令人满意（73.9-108.3%）。
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