The adsorption of a series of aromatic compounds from ethylene glycol-in particular naphthalene, naphthonitrile, naphthylamine, anthracene and phenanthrene-solutions is studied by measuring the differential capacity of the stationary drop Hg electrode. Analysis of the experimental data in terms of the Frumkin-Damaskin theory shows that the adsorption of these compounds conforms well to the Frumkin isotherm with particle-particle interaction corresponding to attraction. The results obtained are compared with those for the adsorption of the same compounds from other non-aqueous solvents. The role of a nonaqueous solvent in determining the mode of adsorption is discussed. (C) 2003 Elsevier Science B.V. All rights reserved.