Abstract
The chromatographic behavior of four groups of s -triazine derivatives (14 compounds) has been studied by TLC on silica gel impregnated with paraffin oil; water-acetone (ϕ acetone = 0.5−0.8), water-acetonitrile (ϕ acetonitrile = 0.2−0.6), and water-dioxane (ϕ dioxane = 0.5−0.8) were used as mobile phases. Investigation of the retention mechanism showed that reversed-phase chromatography occurred under these conditions. Retention constants, R M 0 , were determined by extrapolation and good correlation was obtained between R M 0 and the slope, m , of equations expressing the dependence of retention on mobile phase composition. There was also satisfactory correlation between these retention constants and log P of the s -triazines investigated. Better correlation was obtained between lipophilicity, C 0 , and log P. C 0 can be used as a measure of the lipophilicity of the compounds investigated.
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