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	ボルタンメトリー	イオンクロマトグラフィー
分野	分析化学	分析化学
系統	Process / pipeline	Process / pipeline
提唱年	1922	1975
提唱者	Jaroslav Heyrovsky	Hamish Small
種類	electrochemical separation and analysis	separation and analysis technique
原典	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.
別名	electrochemical voltammetry, cyclic voltammetry, CV, differential pulse voltammetry	IC, ion-exchange chromatography, IEC
関連	5	5
概要	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.