Polarography-past, present, and future

0434729 - ÚFCH JH 2015 RIV DE eng J - Journal Article
Heyrovský, Michael
Polarography-past, present, and future.
Journal of Solid State Electrochemistry. Roč. 15, 7-8 (2011), s. 1799-1803. ISSN 1432-8488. E-ISSN 1433-0768
Institutional research plan: CEZ:AV0Z40400503
Keywords : Chronopotentiometry * Current-controlled electrolysis * Dropping mercury electrode
Subject RIV: CG - Electrochemistry
Impact factor: 2.131, year: 2011

Polarography was first developed as an automated method of voltage-controlled electrolysis with dropping mercury electrode. The spontaneously renewed pure electrode surface provided reproducible electrochemical results which enabled scientists to work out adequate theory and rich analytical applications. The original method was then instrumentally modified in various ways. Later, hanging mercury drop was added as an alternative indicator electrode-in this way, polarography turned formally into voltammetry with mercury drop electrodes. Beside, in potential-controlled electrolysis, the mercury drop electrodes have been also used in current-controlled electrolysis (chronopotentiometry)-there, it has provided new experimental effects. Polarography has thus gradually covered a wide field of electrolytic methods based on the use of mercury electrodes, in which it continues developing.
Permanent Link: http://hdl.handle.net/11104/0238727