Headspace Sampling Used to Analyze Background Vapors of Ionic Liquids

Researchers from Dow Chemical Company (Midland, Michigan) used headspace sampling with gas chromatography to analyze the concentration and identity of compounds in the vapor above six ionic liquids at a temperature of 100 C. The researchers also determined detection limits and measured the partition coefficients of 10 compounds. The results showed that the technique is useful in quantitating compounds in vapors above ionic liquids.