dropping mercury electrode

synonym: DME
mentioned: hanging mercury drop electrode (HMDE), static mercury drop electrode (SMDE)
https://doi.org/10.1351/goldbook.09103
Mercury electrode formed by sequence of mercury drops falling from a small aperture.
Notes:
  1. The DME was introduced by Jaroslav Heyrovský (1890–1967). A drop is renewed every few seconds. Many metals amalgamate with mercury so that in the analysis of metal ions in aqueous solution the DME maintains a fresh surface throughout.
  2. Other kinds of mercury drop electrodes are the static mercury drop electrode (SMDE), in which a drop is held at constant radius before being mechanically knocked off, and the hanging mercury drop electrode (HMDE), in which the whole experiment is performed on a single drop of mercury.
Source:
PAC, 2020, 92, 641. (Terminology of Electrochemical Methods of Analysis (IUPAC Recommendations 2019)) on page 660 [Terms] [Paper]
Citation: 'dropping mercury electrode' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. https://doi.org/10.1351/goldbook.09103 RIS BibTex EndNote
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