Voltammetry for ion transfer at the interface of two immiscible electrolyte solutions was demonstrated to be feasible not only at the aqueous (W)organic solution (Org) interface but also at the formamide (FA)Org and 1,2-ethanediol (ED)Org interfaces. The transfer of alkali metal ions, I-, BF4-, ClO4- IO4-, PF6-, picrate ions and alkylammonium ions has been investigated at the FA2,6-dimethylnitrobenzene (DNB) and EDDNB interfaces. Standard Gibbs energies of ion transfer DELTAG(tr)0 from W to FA or ED were evaluated from the differences in the half-wave potentiaLs at the FADNB, EDDNB and WDNB interfaces. The values of DELTAG(tr)0 were used as the basis of a discussion of features of the solvation of ions in FA, ED and W, taking into account the electrostatic, non-electrostatic and short-range ion-solvent interactions.