MONITORING OF ENVIRONMENTAL OBJECTS USING ECOLOGICALLY CLEAN ELECTRODES

Abstract

The review article presents the achievements of stripping voltammetry with modified environmentally friendly carbon-containing electrodes in environmental monitoring of the environment. The main objective of the research was the complete elimination of toxic mercury from the analytical procedure and its replacement with modifiers, which include bismuth, hydroxyapatite, montmorillonite, ionic liquids, chitosan, materials based on plant and animal cells, as well as their composites with graphite. The issues of development creating microchips with the use of screen printing technologies for solving problems of microtechnology and innovative technologies in the manufacture of microelectrodes that allow analysis in microvolumes of samples are considered. Examples of the use of bismuth and hydroxyapatite modified screen-printed electrodes in the analysis of heavy toxic metals in environmental objects are given. Screen-printed electrodes allow the use of portable systems for real-time analysis, and the automation of their production process makes them more versatile for routine use at low costs, which, in turn, allows their disposal use, especially in demand for non-invasive medical diagnostics.