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Equilibrium chromatographic characteristics of capillary column coated with polytrimethylpropyne for separating polar and non-polar organic compounds by gas capillary chromatography
Authors:Berezkin  V G  Popova  T P  Shiryaeva  V E  Korolev  A A  Malyukova  I V
Institution:(1) Russian Academy of Sciences, A. V. Topchiev Institute of Petrochemical Synthesis, 29 Leninsky prosp., 119991 Moscow, Russian Federation
Abstract:The temperature dependence (50—180 °C) of the retention factor for 35 hydrocarbons and their oxygen-containing derivatives was studied using a capillary column coated with a new film-forming polymeric adsorbent polytrimethylsilylpropyne (PTMSP). The heats of adsorption for 24 organic polar and non-polar compounds on PTMSP were determined. They turned out to be lower than the heats of adsorption of the same compounds on Porapak Q widely used in gas chromatography. The new adsorbent PTMSP is characterized by high selectivity suitable for practical application.
Keywords:capillary gas adsorption chromatography  organic polymer adsorbents  polytrimethylsilylpropyne (PTMSP)  sorption heat
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