Influence of adsorption effects on retention indices of selected C10-hydroxy compounds at various temperatures |
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| Authors: | P Hennig W Engewald |
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| Institution: | (1) Department of Chemistry, University of Leipzig, Linnéstr. 3, 04103 Leipzig, Germany |
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| Abstract: | Summary Retention indices of 6 selected hydroxy compounds (aliphatic and bicyclic alcohols, phenols) were determined on 2 HP-5 fused-silica, capillary columns with different film thicknesses (0.11  m and 0.33 m) at 8 different oven temperatures between 80 and 150°C. For some substances the I-T plot was found to show a minimum which cannot be explained by the common retention-index temperature-dependence in gas-liquid chromatography. This result is discussed in terms of adsorption at the liquid-solid interface of the capillary column. |
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| Keywords: | Gas chromatography Retention index Adsorption effects Terpene alcohols Fused-silica capillary columns |
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