Comparer des méthodes

	Voltamétrie	Chromatographie ionique
Domaine	Chimie analytique	Chimie analytique
Famille	Process / pipeline	Process / pipeline
Année d'origine	1922	1975
Auteur d'origine	Jaroslav Heyrovsky	Hamish Small
Type	electrochemical separation and analysis	separation and analysis technique
Source fondatrice	Nicholson, R. S., & Shain, I. (1965). Theory of stationary electrode polarography for a chemical reaction coupled to electron transfer. Analytical Chemistry, 36(4), 706–723.	Small, H., Stevens, T. S., & Bauman, W. C. (1989). Novel ion exchange chromatographic method using conductometric detection. Analytical Chemistry, 47(11), 1801–1809.
Alias	electrochemical voltammetry, cyclic voltammetry, CV, differential pulse voltammetry	IC, ion-exchange chromatography, IEC
Apparentées	5	5
Résumé	Voltammetry is an electrochemical analytical technique that studies chemical reactions and properties of substances by measuring the current response as the potential applied to an electrode is systematically varied. Developed by Jaroslav Heyrovsky in the 1920s (polarography), modern voltammetry has become essential for measuring redox potentials, detecting trace analytes, and investigating reaction mechanisms. Variants such as cyclic voltammetry (CV) and differential pulse voltammetry (DPV) offer high sensitivity and selectivity for electrochemically active analytes.	Ion chromatography is a liquid chromatography method that separates ions and polar molecules based on their relative affinity for the ion exchange resin in the column. Developed by Hamish Small in 1975, it combines ion-exchange separation with conductivity detection, enabling rapid, sensitive, and simultaneous determination of multiple ions in a single analysis. Ion chromatography has become an indispensable tool for monitoring environmental pollutants, analyzing food and pharmaceutical products, and studying complex ionic mixtures.