Abstract
The chromatographic behavior of phenothiazine derivatives is studied by thin-layer chromatography with the use of Sorbfil silica gel plates in a binary benzene-methanol mixture of solvents. An empirical equation describing the dependence of the retention value (mobility Rf) of the substance on the physicochemical properties of the eluent is proposed. The effect of interactions of different types on the value of their chromatographic retention is estimated; the relation of the obtained coefficients of equations for the substances under study is analyzed. The obtained empirical dependences are used to calculate the Rf values. The discrepancy between the calculated and experimental data is below 0.07.
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