Collect. Czech. Chem. Commun. 1996, 61, 1703-1708

Effect of Ultrasound on Voltammetric Measurements on a Miniaturized Mercury Electrode; Sonovoltammetry and Sonopolarography

Ladislav Novotný

J. Heyrovský Institute of Physical Chemistry, Academy of Sciences of the Czech Republic,182 23 Prague 8, Czech Republic


The influence of ultrasound on voltammetric measurements at a mechanically stable renewed mercury electrode was described. The measurements were carried out in a solution of 4,4'-bipyridyl in 0.1 M KCl + 0.01 M NaOH, in 1 . 10-4 M CdSO4 + 5 . 10-6 M tribenzylamine in 0.1 M H2SO4 and in 3 . 10-3 M CdSO4 + 1 . 10-4 M tribenzylamine hydrochloride. Possible development and applications of related electroanalytical techniques by using mercury and solid electrodes were discussed. A pronounced influence of ultrasound was observed mainly in cases where the kinetics and irreversibility of the electrochemical and related processes played an important role.

Keywords: Ultrasound; Voltammetric measurements; Mercury electrode.