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  • Title: Rapid headspace gas chromatographic method for the determination of liquid/gas partition coefficients.
    Author: Guitart R, Puigdemont A, Arboix M.
    Journal: J Chromatogr; 1989 Jul 21; 491(2):271-80. PubMed ID: 2808614.
    Abstract:
    A rapid, efficient and low-cost headspace technique useful for the determination of liquid/gas partition coefficients of gases and volatile substances of low and intermediate solubility is described. The equilibration step is carried out at constant pressure using glass syringes, with a ratio of liquid/gas phase volumes of ca. 1:3; after 30 min at the desired temperature, the headspace is recovered by transfer into another syringe and analyzed by gas chromatography. A study of the partition coefficients in water at 37 degrees C of 27 volatile compounds demonstrated that the method is fully applicable for all gases, with exception of those with a partition coefficient higher than 300.
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