[en] Studies of the complexes of the title ions with α and β diketonate ligands were performed with the aim of verifying the influence of relativistic effects upon the coordination number of rutherfordium. Since the diketonate complexes are volatile, we developed a new solid-liquid extraction system based on the adsorption of neutral complexes on hydrophobized glass surfaces. This system was applied to the studies of complexation of the short-lived isotopes Zr⁴⁺, Hf⁴⁺, Po⁴⁺ and Rf⁴⁺. The procedure including collection of radioactivity, adsorption of complexes and preparation of the α-source, took roughly 50-60 seconds to complete. The obtained results show that studies of adsorption on hydrophobized glass surface may provide important experimental data on the formation of chelate complexes with short-lived radionuclides. (author)