Vаshkevich E. Analytical use of reaction of thio compounds with halide complexes of gold(III)

To studying reactions of thio reactants with halid complexes of gold(ІІІ) and use of the received results of complex researches in analytical practice. Research methods: UV- and IR-spectroscopy, voltamperometry, potentiometry. The account of features of interaction between chloride and bromide complex ions with thiourea, diethyldithiocarbaminat and Reineke salt have allowed to develop amperometric and potentiometric techniques of definition of gold(ІІІ) determination. The are distinguished by expressiveness, simplicity in performance, sufficient analytical characteristics, which allow to carry out the analysis without isolation of accompanying elements in complex analytical objects. On the basis of the data on potentiometric titrations the constants of replacement and a constants of stability of mixed bromid-thiourea complexes of gold(ІІІ) are designed. It is offered a new thio containing polymeric sorbent which is characterized by high selectivity at concentration of gold (ІІІ). The sorptionand desorption technique of gold (ІІІ) with resto-ration of initial properties of a sorbent is developed. Sphere of employing: analytical chemistry, ecology of an environment.