Abstract
The solvation parameter model is used to characterize the retention properties of the ionic liquid stationary phase 1,9-di(3-vinylimidazolium)nonane bis(trifluoromethylsulfonyl)imide (SLB-IL100) over the temperature range 60–200 °C. The results are presented in the form of a system map comprising a continuous plot of the system constants of the solvation parameter model determined at 20 °C intervals as a function of column temperature. The ionic liquid stationary phase is a cohesive, polar solvent with significant hydrogen-bonding capability. It differs from polar siloxane-based and poly(ethylene glycol) stationary phases by being a moderate hydrogen-bond acid and is shown to possess separation properties that are not duplicated in a comprehensive database of system constants for commercially available open-tubular columns.
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Lenca, N., Poole, C.F. A System Map for the Ionic Liquid Stationary Phase 1,9-Di(3-vinylimidazolium)nonane Bis(trifluoromethylsulfonyl)imide. Chromatographia 78, 81–88 (2015). https://doi.org/10.1007/s10337-014-2790-x
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DOI: https://doi.org/10.1007/s10337-014-2790-x