Compara mètodes

	Mètode d'addició estàndard	Espectrometria de plasma acoblat per inducció
Camp	Química analítica	Química analítica
Família	Process / pipeline	Process / pipeline
Any d'origen	1920s	1964
Autor original	Analytical chemistry practice	Stanley Greenfield
Tipus	matrix-compensating calibration technique	multi-element analysis technique
Font seminal	Harris, D. C. (2010). Quantitative Chemical Analysis (8th ed.). Freeman. ISBN: 978-1429218153	Greenfield, S., Jones, I. L., & Berry, C. T. (1968). High-pressure plasma jet source for use in atomic spectroscopy. Analyst, 93(1108), 694–697.
Àlies	spiking method, known-addition method, matrix matching	ICP-OES, ICP-AES, ICP-MS, plasma emission spectroscopy
Relacionats	5	5
Resum	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.	Inductively coupled plasma spectrometry is a powerful multi-element analytical technique that ionizes a sample in a high-temperature plasma and measures the emitted light (ICP-OES) or ion masses (ICP-MS) to determine elemental concentrations. Developed in the 1960s by Stanley Greenfield, ICP techniques have become the standard for trace element analysis across environmental, geological, biological, and industrial fields. The method combines exceptional sensitivity, wide dynamic range, and the ability to analyze dozens of elements simultaneously.