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Original Articles

RELATIONSHIP BETWEEN THE CALCULATED PHYSICOCHEMICAL PARAMETERS AND REVERSED-PHASE THIN-LAYER CHROMATOGRAPHIC RETENTION BEHAVIOR OF ALKOXY-PHENYLBENZAMIDE DERIVATIVES

G. Oros Plant Protection Institute, Hungarian Academy of Sciences, Budapest, Hungary

,

M. Szőgyi Chemical Research Center, Hungarian Academy of Sciences, Budapest, Hungary

&

T. Cserháti Chemical Research Center, Hungarian Academy of Sciences, Budapest, HungaryCorrespondence[email protected]

Abstract

The retention characteristics of 16 alkoxy-phenylbenzamide derivatives were determined by employing various stationary (impregnated silica and alumina) and mobile phases (mixture of water with acetone, methanol, tetrahydrofuran, acetonitrile, dioxin) and the lipophilicity parameters (lipophilicity, extrapolated to zero concentration of organic modifier; specific hydrophobic surface area) were calculated from the retention data. The data indicated that both the characteristic and concentration of the organic modifier influence the determination of lipophilicity parameters.

Keywords:

Notes

Stationary phase: Silica and alumina impregnated with paraffin oil.

Mobile phase: Acetone-water mixtures.

Numbers refer to analytes in Figure .

Stationary phase: Silica and alumina impregnated with paraffin oil.

Mobile phase: Methanol-water mixtures.

Numbers refer to analytes in Figure .

Stationary phase: Silica and alumina impregnated with paraffin oil.

Mobile phase: Tetrahydrofurane-water mixtures.

Numbers refer to analytes in Figure .

Stationary phase: Silica and alumina impregnated with paraffin oil.

Mobile phase: Acetonitrile-water mixtures.

Numbers refer to analytes in Figure .

Stationary phase: Silica and alumina impregnated with paraffin oil.

Mobile phase: Dioxane -water mixtures.

Numbers refer to analytes in Figure .

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