ELECTRODE SYSTEM TO CONDUCT VOLT-AMPEROMETRIC ANALYSIS AND PROCESS OF ELECTROCHEMICAL TREATMENT OF ITS ELECTRODES Russian patent published in 1999 - IPC

FIELD: electrochemical analysis. SUBSTANCE: proposed electrode system can be used in the capacity of sensor in mix of polarographic equipment. Given electrode system includes indicator electrode, auxiliary electrode and comparison electrode made from identical glass and carbon rods put into common case of inert material and forming working butt with one of sides of case from which electrodes of system protrude. Electrochemical polishing of protruding parts of glass and carbon rods is conducted by their anode working in electrolyte based on aqueous solution containing potassium hydroxide or sodium hydroxide and acetone with following ratio of components, per cent by mass: potassium or sodium hydroxide 0.5-2.5, acetone 0.6- 4.0, water being the balance. EFFECT: increased sensitivity of system thanks to enlarged working surface of electrodes. 3 cl, 3 dwg, 1 tbl