Abstract
Adsorption and chromatographic properties of a porous-layer open-tubular (PLOT) capillary column with aerosil were studied. The retention factors k of n-alkanes, not condensed and condensed arenes, and alcohols were determined over the temperature range 120–180°C, and the heats of their adsorption were calculated. The Rohrschneider constants (100°C) and the contributions of specific interactions to the adsorption heats were determined. It was shown that the PLOT/SiO2 column was similar in chromatographic properties to wall coated open tubular columns with polysiloxane stationary phases but superior to them as concerns thermal stability and service life.
Published Version
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