Search

Background. The created modified carbon-paste electrodes (UPE) in their metrological characteristics are not inferior to the electrodes used in the practice of electroanalytical chemistry. Their application has a wide range of practical applications in electrochemistry due to the selection of a selective modifier. Purpose. Establishment of the influence of the nature and concentration of the analytes to be determined on the chemical and analytical properties of modified electrodes and the development of an inversion voltammetric method for the determination of antimony on its basis. Methodology. Modified electrodes and antimony ions were selected as objects of research. The study was carried out using the stripping voltammetric method Originality. New stripping voltammetric methods and electrodes with modified reagents for the determination of antimony have been proposed. The effect of modification of the investigated organic compounds on their chemical-analytical properties is shown. Findings. An inversion voltammetric method for the determination of antimony using an electrode modified with 8-hydroxyquinoline has been developed. The optimal conditions for the determination of antimony are found and the conditions for obtaining modified electrodes are optimized. The technique has been tested on various types of real samples. [ABSTRACT FROM AUTHOR]