Evaluation of Carboxen carbon molecular sieves for trapping replacement chlorofluorocarbons

S. J. O'Doherty*, P. G. Simmonds, G. Nickless, W. R. Betz

*Corresponding author for this work

    Research output: Contribution to journalArticle (Academic Journal)peer-review

    28 Citations (Scopus)


    A method has been developed for trapping and preconcentrating the very volatile replacement chlorofluorocarbons (hydrofluorocarbons and hydrochlorofluorocarbons) using microtraps filled with Carboxen, a carbon molecular sieve type material, without the need for extensive cryotrapping using liquid nitrogen. We present here the adsorption characteristics of four Carboxen materials, Carboxen 569, 1000, 1001, and 1002, used to trap a range of replacement chlorofluorocarbons varying in boiling point from -48.4 to -9.8°C. The application of these traps for the automated analysis of trace gases in atmospheric and environmental chemistry could prove extremely useful.

    Original languageEnglish
    Pages (from-to)265-274
    Number of pages10
    JournalJournal of Chromatography A
    Issue number1-2
    Publication statusPublished - 5 Feb 1993


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