Thermodynamic of adsorption alkylanilines on porous graphitic carbon Hypercarb under conditions of HPLC
Keywords:
high-perfomance liquid chromatography, the Henry region, porous graphitic carbon adsorbent Hypercarb, thermodynamic characteristics of retention, aniline derivatives, correlations «structureretention ».Abstract
Parametres of retention of methylanilines are defined experimentally under conditions of an
equilibrium liquid chromatography on a column with porous graphitic carbon adsorbent Hypercarb.
Experiment was spent in the field of extremely low concentration of adsorbate in eluent (the Henry region).
Dependence of parametres of adsorption on number and position of methyl groups in a adsorbate molecules
is established. Applicability of Abraham’s model of solvation parametres to the description of retention of the
investigated connections on surface Hypercarb from the environment of various eluent is shown. A number
of the laws connecting retention parametres of alkylanilines on graphitic carbon surface from liquid (HPLC)
and gas (GSC) of phases is received
