radiochromatography
noun
ra·dio·chro·ma·tog·ra·phy
ˈrād-ē-ō-ˌkrō-mə-ˈtäg-rə-fē
plural radiochromatographies
: the process of making a quantitative or qualitative determination of a radioisotope-labeled substance by measuring the radioactivity of the appropriate zone or spot in the chromatogram
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Merriam-Webster unabridged
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