Method and apparatus for electrochemical analysis by potentiometry with stripping

摘要

the present invention relates to the electrochemical analysis, especially as, in tracks in a liquid sample. potentiometrie electrochemically active substance by using coulometrischer resolution (stripping) using a arbeitselektrode the supervision artistic contact with the sample.erfindungsgemu00e4u00df is sequentially a virtually full electrolysis or komplexierung under adsorption of the electrochemically active substance, a first stripping step, and at least two subsequent stripping cycles, each with a subsequent elektrolyseschritt and a well chfolgenden stripping step are carried out.specific selection of the arbeitsparameter and the measured parameters of the oxidation or the reduction in the arbeitselektrode equivalent medium automatically by means of electricity. the electricity arbeitselektrode scale during the strippings determined; this is a d tripartite in the liquid, the sample.this is the determination of the concentration of the substance without prior calibration (figure 1).