02720 IUPAC Gold Book - half-peak potential 10.1351/goldbook.H02720 H02720 current 1 In linear-sweep voltammetry, triangular-wave voltammetry, cyclic triangular-wave voltammetry, and similar techniques, the potential of the indicator electrode at which the difference between the total current and the residual current is equal to one-half of the peak current. This potential is attained in the interval in which the rate of the charge-transfer process, and hence the (absolute value of the) current, increase monotonically with time. indicator electrode https://goldbook.iupac.org//terms/view/I03006 peak current https://goldbook.iupac.org//terms/view/P04457 residual current https://goldbook.iupac.org//terms/view/R05311 PAC, 1985, 57, 1491. 'Recommended terms, symbols, and definitions for electroanalytical chemistry (Recommendations 1985)' on page 1502 (https://doi.org/10.1351/pac198557101491) https://goldbook.iupac.org/terms/view/H02720/html https://goldbook.iupac.org/terms/view/H02720/json https://goldbook.iupac.org/terms/view/H02720/plain Citation: 'half-peak potential' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. 10.1351/goldbook.H02720 The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International (https://creativecommons.org/licenses/by-sa/4.0/) for individual terms. If you are interested in licensing the Gold Book for commercial use, please contact the IUPAC Executive Director at executivedirector@iupac.org . The International Union of Pure and Applied Chemistry (IUPAC) is continuously reviewing and, where needed, updating terms in the Compendium of Chemical Terminology (the IUPAC Gold Book). Users of these terms are encouraged to include the version of a term with its use and to check regularly for updates to term definitions that you are using. 2026-06-06T13:19:31+00:00