Comparer des méthodes

	Méthode d'addition standard	Titrage potentiométrique
Domaine	Chimie analytique	Chimie analytique
Famille	Process / pipeline	Process / pipeline
Année d'origine	1920s	1909
Auteur d'origine	Analytical chemistry practice	Soren Sorensen
Type	matrix-compensating calibration technique	titration method
Source fondatrice	Harris, D. C. (2010). Quantitative Chemical Analysis (8th ed.). Freeman. ISBN: 978-1429218153	Skoog, D. A., West, D. M., Holler, F. J., & Crouch, S. R. (2014). Fundamentals of Analytical Chemistry (9th ed.). Cengage Learning. ISBN: 978-1133170960
Alias	spiking method, known-addition method, matrix matching	potentiometry, electrochemical titration
Apparentées	5	5
Résumé	The standard addition method is a quantitative analytical technique that determines the concentration of an unknown analyte by measuring the response before and after adding a known quantity of the analyte (a standard) to the sample itself. This approach compensates for matrix effects and interference from other sample components, making it invaluable when analyzing complex matrices (biological fluids, environmental samples, geological materials) where the sample composition profoundly affects the measured signal. The standard addition method is widely recognized in analytical chemistry as a primary quantification strategy when external calibration is compromised by matrix variability.	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.