Complex of 4,4’-diamino-2,2’-stilbenedisulfonic acid (DSD) with trivalent lanthanide ions Eu3+ and Tb3+ were prepared at the ratio of 3:1 (DSD:Ln). The complexes with ions present in the form of powder show black (Eu3+) and brown (Tb3+) colors.
The interaction of Pt(IV) ions with the new derivatives of azolidones by spectrophotometric method was investigated. The spectrophotometric method for the determination of Pt(IV) using 5-hydroxyimino-4-imino-1,3-thiazolidine-2-one at pH 5.0 in acetate buffer medium was elaborated. The proposed method was tested by determination of Pt(IV) in model solutions and metallic alloy.
Results comparison was performed within the terms of multi-component analysis for light absorption arrays processed using the method of consecutive separation of graduation surface (MCSGS), developed by the authors, with other methods of pseudo-one-dimensional processing. Determination of Ni2+, Co3+, Fe2+, Cu2+ ion concentrations with 1-(2-pyridylazo)-2-naphthol in aqueous-micellar medium on two-dimensional absorption spectra of wave length by pH coordinates were performed.
The interaction of Pd(II) ions with 5-hydroxyimino-4-imino-1,3-thiazolidin-2-one (HITO) in water solution has been investigated. The optimum conditions of the complexation for the complex of palladium(II) with 5-hydroxyimino-4-imino-1,3-thiazolidin-2-one were found. The composition of еру complex was determined. The method of spectrophotometric determination of palladium(II) ions with HITO was developed.