Bonded ionic liquid polymeric material for solid-phase microextraction GC analysis

Analytical and Bioanalytical Chemistry
Eranda WanigasekaraDaniel W Armstrong

Abstract

Four new ionic liquids (IL) were prepared and bonded onto 5-microm silica particles for use as adsorbent in solid-phase microextraction (SPME). Two ILs contained styrene units that allowed for polymerization and higher carbon content of the bonded silica particles. Two polymeric ILs differing by their anion were used to prepare two SPME fibers that were used in both headspace and immersion extractions and compared to commercial fibers. In both sets of experiments, ethyl acetate was used as an internal standard to take into account adsorbent volume differences between the fibers. The polymeric IL fibers are very efficient in headspace SPME for short-chain alcohols. Immersion SPME also can be used with the IL fibers for short-chain alcohols as well as for polar and basic amines that can be extracted at pH 11 without damage to the IL-bonded silica particles. The sensitivities of the two IL fibers differing by the anion were similar. Their efficacy compares favorably to that of commercial fibers for polar analytes. The mechanical strength and durability of the polymeric IL fibers were excellent.

References

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Feb 1, 2003·Analytical and Bioanalytical Chemistry·S Carda-BrochD W Armstrong
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Sep 28, 2007·Analytical and Bioanalytical Chemistry·Ke HuangDaniel W Armstrong
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Dec 25, 2007·Journal of Chromatography. a·A BerthodS Carda-Broch

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Citations

Jul 9, 2013·Journal of Chromatographic Science·Maosheng ZhangXi Chen
Mar 19, 2014·Analytical and Bioanalytical Chemistry·Min SunShengxiang Jiang
Dec 25, 2015·Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences·Leila Sheikhian, Sedigheh Bina
Mar 1, 2012·Rapid Communications in Mass Spectrometry : RCM·Sirantha PereraDaniel W Armstrong
Dec 14, 2011·Journal of Separation Science·Jaime González-ÁlvarezMaría D Gutiérrez-Álvarez
Sep 25, 2012·Journal of Separation Science·Dandan HanKyung Ho Row
Jan 22, 2013·Journal of Separation Science·Lili XuShengxiang Jiang
Dec 7, 2011·Chirality·Tharanga Payagala, Daniel W Armstrong
Feb 8, 2011·Analytical Chemistry·Pavithra A L WijethungaHyejin Moon

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