Chromatographic analysis of very volatile hydrohalocarbons and chlorofluorocarbons has proved to be a difficult task due to the generally poor retention of these compounds on commercially available wall coated open tubular capillary columns. Although porous layer open tubular (PLOT) capillary columns coated with alumina/KCl, or alumina/Na2SO4 provide adequate resolution for this class of compound they induce dehydrochlorination of certain hydrohalocarbons. More recently PLOT columns coated with Porapak porous polymer materials Q, S and U have been shown to provide inadequate resolution and high column bleed at the high column temperatures required for separation. We present results from the analysis of mixtures of hydrohalocarbons, chlorofluorocarbons, halocarbons, and halons, using a commercially available cyclodextrin PLOT column. (C) 1999 Elsevier Science B.V. All rights reserved.
|Number of pages||6|
|Journal||Journal of Chromatography A|
|Publication status||Published - 5 Feb 1999|
- capillary columns
- REPLACEMENT CHLOROFLUOROCARBONS
- RETENTION MECHANISMS
- STATIONARY PHASES