Term: asymmetry potential
https://doi.org/10.1351/goldbook.A00487

Definition:
The measured potential difference of a symmetrical cell with identical solutions and reference electrodes on each side of the glass membrane. There is rarely the need, nor the possibility, of measuring the asymmetry potential of commercial glass electrodes. Drifts in glass electrode potentials with time and variations from day to day in the potential measured in a standard buffer may be attributed to changes in asymmetry potential.

Related Terms:
1) membrane (http://doi.org/10.1351/goldbook.MT06878).
2) asymmetry (http://doi.org/10.1351/goldbook.A00486).
3) day (http://doi.org/10.1351/goldbook.D01527).

Source: Orange Book, 2nd ed., p. 27 (https://media.iupac.org/publications/analytical_compendium/)

Citation: 'asymmetry potential' 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.A00487

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