THE COMPONENT COMPOSITION AND CHEMICO-ANALYTICAL CHARACTERISTICS OF THE REDOX-SYSTEMS AT THE VARIABLE VALENCY METAL IONS SPECTROPHOTOMETRIC DETERMINATION

Abstract

The spectrophotometric methods of the variable valency metal ions determination based on the chemical system components redox transformations have been viewed and analyzed. The fundamental relationship between the number of components involved in the redox process as well as the nature of the analytical form with the selectivity of the proposed redox reactions has been shown. The mutual reduction-oxidation of metal ions with organic reagents has been found to determine this reaction high selectivity and could be the basis for its determining spectrophotometric method not requiring masking or separation of accompanying ions and test sample macrobase preliminary stages.

Keywords

• органічний реагент, редокс-система, спектрофотометрія, визначення металів