Evaluations of Polar and Highly Polar Ionic Liquid Capillary GC Columns with Environmental Samples

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Ionic liquids are a class of non-molecular ionic solvents with low melting points.  These liquids are unique combinations of cations and anions and can provide a variety of different selectivities when used as stationary phases in capillary gas chromatography.  A number of ionic liquid phases have been evaluated and characterized for selectivity and determined to be polar or highly polar in selectivity compared to traditional siloxane based phases.  These phases will offer an orthogonal separation mechanism compared to the nonpolar phases that are widely used to analyze environmental samples. In this study we will demonstrate the classical selectivity determination of the phases along with analyzing a series of polychlorinated biphenyl (PCB) samples.  The stability of the ionic liquid phases being used with air as a carrier gas will also be investigated.

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