期刊
ANALYTICAL AND BIOANALYTICAL CHEMISTRY
卷 410, 期 6, 页码 1657-1665出版社
SPRINGER HEIDELBERG
DOI: 10.1007/s00216-017-0845-1
关键词
Magnetic covalent triazine-based frameworks; Magnetic solid-phase extraction; Perfluorinated compounds; Liquid chromatography-tandem mass spectrometry; Environmental water samples
资金
- National Natural Science Foundation of China [21777089, 21477068]
- Key Research and Development Program of Shandong Province [2017GSF17107]
- Shandong Province Taishan Scholar Program
Covalent organic frameworks (COFs), which are a new type of carbonaceous polymeric material, have attracted great interest because of their large surface area and high chemical and thermal stability. However, to the best of our knowledge, no work has reported the use of magnetic COFs as adsorbents for magnetic solid-phase extraction (MSPE) to enrich and determine environmental pollutants. This work aims to investigate the feasibility of using covalent triazine-based framework (CTF)/Fe2O3 composites as MSPE adsorbents to enrich and analyze perfluorinated compounds (PFCs) at trace levels in water samples. Under the optimal conditions, the method developed exhibited low limits of detection (0.62-1.39 ng center dot L-1), a wide linear range (5-4000 ng L-1), good repeatability (1.12-9.71%), and good reproducibility (2.45-7.74%). The new method was successfully used to determine PFCs in actual environmental water samples. MSPE based on CTF/Fe2O3 composites exhibits potential for analysis of PFCs at trace levels in environmental water samples.
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