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Voltametrie×Analiza prin injecție în flux×Cromatografie ionică×Titrarea Potențiometrică×
DomeniuChimie analiticăChimie analiticăChimie analiticăChimie analitică
FamilieProcess / pipelineProcess / pipelineProcess / pipelineProcess / pipeline
Anul apariției1922197519751909
Autorul originalJaroslav HeyrovskyJaromir RuzickaHamish SmallSoren Sorensen
Tipelectrochemical separation and analysiscontinuous flow techniqueseparation and analysis techniquetitration method
Sursa seminalăNicholson, R. S., & Shain, I. (1965). Theory of stationary electrode polarography for a chemical reaction coupled to electron transfer. Analytical Chemistry, 36(4), 706–723. link ↗Ruzicka, J., & Hansen, E. H. (1979). Flow injection analysis: Part 1. A new concept of fast continuous flow analysis. Analytica Chimica Acta, 106, 207–224. DOI ↗Small, H., Stevens, T. S., & Bauman, W. C. (1989). Novel ion exchange chromatographic method using conductometric detection. Analytical Chemistry, 47(11), 1801–1809. DOI ↗Skoog, D. A., West, D. M., Holler, F. J., & Crouch, S. R. (2014). Fundamentals of Analytical Chemistry (9th ed.). Cengage Learning. ISBN: 978-1133170960
Denumiri alternativeelectrochemical voltammetry, cyclic voltammetry, CV, differential pulse voltammetryFIA, sequential injection analysis, SIA, flow-based analysisIC, ion-exchange chromatography, IECpotentiometry, electrochemical titration
Înrudite5555
RezumatVoltammetry 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.Flow injection analysis is an automated continuous-flow technique that rapidly injects a sample plug into a flowing stream of carrier solution, where it mixes with reagents and is detected online before reaching the detector. Developed by Jaromir Ruzicka and Elo Hansen in 1975, FIA revolutionized analytical chemistry by enabling rapid, high-throughput analysis with minimal reagent consumption and waste. Flow injection analysis is widely used in pharmaceutical, food, environmental, and clinical laboratories for routine quantitative analysis.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.Potentiometric titration is an electrochemical method of analysis that measures the potential difference between a reference electrode and an indicator electrode as a titrant is gradually added to a solution. Developed in the early 20th century, it allows precise determination of the concentration of analytes without requiring visual endpoint indicators. This method is fundamental in analytical chemistry for determining acids, bases, redox species, and metal ions.
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ScholarGateCompară metode: Voltammetry · Flow Injection Analysis · Ion Chromatography · Potentiometric Titration. Preluat la 2026-06-19 de pe https://scholargate.app/ro/compare