Campus Units

Chemistry, Ames Laboratory

Document Type


Publication Version

Accepted Manuscript

Publication Date


Journal or Book Title

Journal of Separation Science




This study describes the design, synthesis, and application of polymeric ionic liquid sorbent coatings featuring nickel metal centers for the determination of volatile and semi‐volatile amines from water samples using headspace solid‐phase microextraction. The examined polymeric ionic liquid sorbent coatings were composed of two ionic liquid monomers (tetra(3‐vinylimidazolium)nickel bis[(trifluoromethyl)sulfonyl]imide [Ni2+(VIM)4] 2[NTf2–] and 1‐vinyl‐3‐hexylimidazolium [HVIM+][NTf2–]), and an ionic liquid crosslinker (1,12‐di(3‐vinylimidazolium)dodecane [(VIM)2C122+] 2[NTf2–]). With these ionic liquid monomers and crosslinkers, three different types of coatings were prepared: PIL 1 based on the neat [Ni2+(VIM)4] 2[NTf2–] monomer; PIL 2 consisting of the [Ni2+(VIM)4] 2[NTf2–] monomer with addition of crosslinker, and PIL 3 comprised of the [HVIM+][NTf2–] monomer and crosslinker. Analytical performance of the prepared sorbent coatings using headspace solid‐phase microextraction GC‐MS was compared with the polydimethylsiloxane and polyacrylate commercial coatings. The PIL 2 sorbent coating yielded the highest enrichment factors ranging from 5500 to over 160000 for the target analytes. The developed headspace solid‐phase microextraction GC‐MS method was applied for the analysis of real samples (the concentration of amines was 200 μg L–1), producing relative recovery values in the range of 90.9‐120.0 % (PIL 1) and 83.0‐122.7 % (PIL 2) from tap water, and 84.8‐112.4 % (PIL 1) and 79.2‐119.3 % (PIL 2) from lake water.


This is the peer-reviewed version of the following article: Yavir, Kateryna, Philip Eor, Adam Kloskowski, and Jared L. Anderson. "Polymeric metal‐containing ionic liquid sorbent coating for the determination of amines using headspace solid‐phase microextraction." Journal of Separation Science (2021), which has been published in final form at DOI: 10.1002/jssc.202100119. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving. Posted with permission.

Copyright Owner

Wiley-VCH GmbH, Weinheim



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Available for download on Saturday, April 23, 2022

Published Version