Studies of the temperature dependence of retention in supercritical fluid Chromatography
Abstract
The capacity factors for the chromatographic retention of naphthalene,
fluorene, phenanthrene and pyrene in supercritical carbon dioxide using an
octadecyl silate bonded-phase column have been measured between 300 and
400 K. The results, which go through a maximum as a function of
temperature, are quantitatively explained using the Peng-Robinson
equation of state to calculate fugacity coefficients in the supercritical phase.
Values of the enthalpies of solution of the compounds in the stationary
phase from the vapour phase are obtained which are approximately equal
and opposite to published values of the enthalpies of sublimation of the
compounds.
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URI
http://profiles.uonbi.ac.ke/jkithinji/publications/studies-temperature-dependence-retention-supercritical-fluid-chromatographyhttp://erepository.uonbi.ac.ke:8080/xmlui/handle/123456789/27972
Citation
Studies of the temperature dependence of retention in supercritical fluid Chromatography., P, DR. KITHINJI JACOB , J. Chem. Soc. Faraday Trans. 84(12), (1988) 4487-4493., (1988) copy at http://profiles.uonbi.ac.ke/jkithinji/publications/studies-temperature-dependence-retention-supercritical-fluid-chromatographyPublisher
Department of Chemistry