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Electrochemical Renewal of Stationary Mercury Drop or Meniscus Electrodes
Author(s) -
Polášková Petra,
Novotný Ladislav,
Ostatná Veronika,
Paleček Emil
Publication year - 2009
Publication title -
electroanalysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.574
H-Index - 128
eISSN - 1521-4109
pISSN - 1040-0397
DOI - 10.1002/elan.200804459
Subject(s) - drop (telecommunication) , electrode , mercury (programming language) , electrochemistry , materials science , hanging mercury drop electrode , dropping mercury electrode , analytical chemistry (journal) , chemistry , voltammetry , chromatography , mechanical engineering , computer science , engineering , programming language
We show that a liquid mercury drop electrode surface can be electrochemically renewed without mechanical detachment of the drop. Voltammetric experiments with a mechanically renewed stationary (hanging) mercury drop or meniscus electrode (SME) and an electrochemically renewed SME are compared. The measurements were performed with two surface active organic depolarizers, i.e., 2‐aminoanthraquinone and dithiothreitol and surface inactive Cd(NO 3 ) 2 . The results show that efficient purely electrochemical renewal of the electrode surface of SME for voltammetric purposes is possible.