Abstract

The properties of the heterophase system perfluorodecalin-acetonitrile differ significantly from those of other combinations of the organic solvents limitedly soluble in each other. While for the most of such combinations the distribution coefficients (Kd) of homologues increase in going from the simplest to next members of the series, in the case of perfluorodecalin-acetonitrile they remain almost constant. This provides a possibility to use the values of Kd directly for the group identification of analytes, and first of all allows distinguishing isomeric alkenes and cycloalkanes, as well as the isomers of the hydrocarbons with greater formal unsaturation.

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