isotope dilution analysis 

https://doi.org/10.1351/goldbook.I03323
A kind of quantitative analysis based on the measurement of the isotopic abundance of a nuclide after isotope dilution with the test portion.
Source:
PAC, 1994, 66, 2513. (Nomenclature for radioanalytical chemistry (IUPAC Recommendations 1994)) on page 2521 [Terms] [Paper]
Citation: 'isotope dilution analysis' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. https://doi.org/10.1351/goldbook.I03323 RIS BibTex EndNote
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Last revised: February 24, 2014