Chernyshova O. The influence of surfactants and others components of matrix on response of cation selective membrane electrodes

Surfactant micellar solutions, potentiometry with ion selective electrodes. The factors that influence on the analytical signal should be quantitatively characterised. The response models of cation selective electrodes in organized solutions should be worked out. The methods of research are potentiometry, mathematical modelling, chemical analysis. The metrological substantiation of potentiometry with cation selective solid-state membrane electrodes in surfactant micellar medium was first carried out. The effect of different type surfactants (anionic, cationic, non-ionic) on electrode response was investigated. The response models of copper(II) and cadmium(II) selective electrodes in anionic micellar medium of dodecylsulphate were obtained. The complex formation models of Cu(II) and Cd(II) with different charge type ligands in micellar media was obtained. Metal buffer solutions for calibration of cadmium(II) selective electrodes in micellar medium were created. The concept of specific ligands effect on cation selective membrane was developed. The usage field is chemical analysis and research work.