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Updated: Jun 22, 2026

Analysis of Volatile and Oxidation Sensitive Compounds Using a Cold Inlet System and Electron Impact Mass Spectrometry
Published on: September 5, 2014
Analysis by desorption of volatile impurities from an ionic liquid solution in an unmodified gas chromatograph inlet
Grant Von Wald1, David Albers, Terry McCabe
1The Dow Chemical Company, Analytical Sciences, 1897 Building, Midland, MI 48667, USA. gvwald@dow.com
Abstract:
A procedure for using ionic liquids to determine volatile impurities in compounds or matrices that are soluble in an ionic liquid is described. Using a conventional autosampler a droplet of ionic liquid solution is suspended in the inlet of the gas chromatograph and analytes are desorbed onto a GC column using splitless injection conditions. Results are presented for 1,2-propanediol, nonane, N,N-dimethylacetamide, and mesitylene in two different compounds in the ionic liquids trihexyltetradecylphosphonium bis(trifluoromethylsulfonyl)imide and trihexyltetradecylphosphonium dicyanamide.
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