The Interaction of 5-hydroxyimino-4-imino-1,3-thiazolidin-2-one with Platinum(IV) Ions

Abstract

The work is devoted to the study of platinum(IV) ions with a new organic reagent – 5-hydroxyimino-4-imino-1,3-thiazolidin-2-one (HITO). The optimum conditions of interaction: pH = 5.0 (acetate buffer), 60 min heating in a boiling water bath, λmax = 350 nm have been found. The ratio of components in complex Pt(IV):HITO = 1:1 at рН = 5.0 has been established. The molar absorptivity (ε350 = 5.0∙103 L∙mol-1∙cm-1) and detection limit of platinum (Cmin = 2.4∙10-6 mol∙L-1) are calculated.