Expanding the Applicability of Poly(Ionic Liquids) in Solid Phase Microextraction: Pyrrolidinium Coatings
authors Patinha, DJS; Tome, LC; Isik, M; Mecerreyes, D; Silvestre, AJD; Marrucho, IM
nationality International
journal MATERIALS
author keywords solid phase microextraction; poly(ionic liquids); UV-photopolymerization; gas chromatography; steel coatings; fibers
keywords POLYMERIC IONIC LIQUID; SORBENT COATINGS; EXTRACTION; SILICA; WATER; CHEMISTRY; SYSTEMS; FIBERS
abstract Crosslinked pyrrolidinium-based poly(ionic liquids) (Pyrr-PILs) were synthesized through a fast, simple, and solventless photopolymerization scheme, and tested as solid phase microextraction (SPME) sorbents. A series of Pyrr-PILs bearing three different alkyl side chain lengths with two, eight, and fourteen carbons was prepared, characterized, and homogeneously coated on a steel wire by using a very simple procedure. The resulting coatings showed a high thermal stability, with decomposition temperatures above 350 degrees C, excellent film stability, and lifetime of over 100 injections. The performance of these PIL-based SPME fibers was evaluated using a mixture of eleven organic compounds with different molar volumes and chemical functionalities (alcohols, ketones, and monoterpenes). The Pyrr-PIL fibers were obtained as dense film coatings, with 67 mu m thickness, with an overall sorption increase of 90% and 55% as compared to commercial fibers of Polyacrylate (85 mu m) (PA85) and Polydimethylsiloxane (7 mu m) (PDMS7) coatings, respectively. A urine sample doped with the sample mixture was used to study the matrix effect and establish relative recoveries, which ranged from 60.2% to 104.1%.
publisher MDPI AG
issn 1996-1944
year published 2017
volume 10
issue 9
digital object identifier (doi) 10.3390/ma10091094
web of science category Materials Science, Multidisciplinary
subject category Materials Science
unique article identifier WOS:000411506700102
  ciceco authors
  impact metrics
times cited (wos core): 0
journal impact factor (jcr 2016): 2.654
5 year journal impact factor (jcr 2016): 3.236
category normalized journal impact factor percentile (jcr 2016): 70.364
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