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4220307 
Journal Article 
Magnetic covalent triazine-based frameworks as magnetic solid-phase extraction adsorbents for sensitive determination of perfluorinated compounds in environmental water samples 
Ren, JY; Wang, XL; Li, XL; Wang, ML; Zhao, RS; Lin, JM 
2018 
Yes 
Analytical and Bioanalytical Chemistry
ISSN: 1618-2642
EISSN: 1618-2650 
410 
1657-1665 
English 
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·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. Graphical abstract Magnetic covalent triazine-based frameworks (CTFs) were used as magnetic solid-phase extraction adsorbents for the sensitive determination of perfluorinated compounds in environmental water samples. PFBA perfluorobutyric acid, PFBS perfluorobutane sulfonate, PFDA perfluorodecanoic acid, PFDoA perfluorododecanoic acid, PFHpA perfluoroheptanoic acid, PFHxA perfluorohexanoic acid, PFHxS perfluorohexane sulfonate, PFNA perfluorononanoic acid, PFOA perfluorooctanoic acid, PFPeA perfluoropentanoic acid, PFUdA Perfluoroundecanoic acid. 
Chemistry--Analytical Chemistry; Magnetic covalent triazine-based frameworks; Magnetic solid-phase extraction; Perfluorinated compounds; Liquid chromatography–tandem mass spectrometry; Environmental water samples; Pollutants; Adsorbents; Feasibility studies; Thermal stability; Covalence; Reproducibility; Surface area; Perfluorooctanoic acid; Water analysis; Protozoa; Triazine; Perfluorodecanoic acid; Water sampling; Perfluorohexane; Trace levels; Perfluoro compounds 
• PFBA
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• PFDA
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• PFHpA
     Literature Search Update 2017-2019
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• PFOA (335-67-1) and PFOS (1763-23-1)
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