In situ modified electrodes in stripping voltammetry

Abstract

The application of three types of in situ modified electrode in stripping voltammetry is considered. Electrodes of type I were obtained by surface modification using triphenylmethane dyes and were used for the determination of the concentrations of Sb^III and l^– ions. Electrodes of type II were modified by electrodeposition of mercury on a graphite electrode and adsorption of Hgl₃^– ions and were used in the cathodic stripping voltammetry of arsenic and tellurium. Electrodes of type III were modified with adatoms of thallium on a graphite electrode surface.