Ketoimine modified silica as an adsorbent for gas chromatographic analysis of olefins |
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Authors: | Wawrzyniak Rafa? Wasiak Wies?aw |
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Institution: | Faculty of Chemistry, A. Mickiewicz University, Grunwaldzka 6, 60-780 Poznań, Poland. rafwawrz@amu.edu.pl |
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Abstract: | New adsorbents for capillary complexation GC have been proposed. The adsorbents contain free ketoimine groups which enable binding copper(II) and chromium(III) chlorides. The adsorbents obtained have been characterised by elemental analysis, differential scanning calorimetry and electron spin resonance. The specific interactions between the adsorbent and adsorbate molecules have been characterised by retention parameters (retention index - I, specific retention volume - Vg, molecular retention index - deltaMe). Attempts were also made at separating mixtures of olefins. |
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Keywords: | Bound chemical phases Capillary columns Column technology Gas chromatography PLOT |
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