radioassayn.
/ˌreɪdɪəʊəˈseɪ/, /ˌreɪdɪəʊˈaseɪ/, U.S. /ˌreɪdioʊˈæˌseɪ/ An assay performed by measuring the radioactivity of a radioisotope.
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the world > matter > chemistry > chemical assay or analytical chemistry > [noun] > acetimetry > assay
Marsh test1837
four-point assay1940
radioassay1945
1945 Proc. National Acad. Sci. U.S.A. 31 374 The barium salts of the fatty acids..were used in the radio-assay.
1963 Analyt. Biochem. 5 89 The radioassay of cholesterol-C14 digitonide by gas flow technique..using methanol as the solvent.
1997 Seminars Oncol. 24 639 Radioassays, particularly radioimmunoassays, are routinely used to detect and measure a wide variety of ligands for tumours.
This entry has been updated (OED Third Edition, June 2008; most recently modified version published online March 2022).
radioassayv.
/ˌreɪdɪəʊəˈseɪ/, /ˌreɪdɪəʊˈaseɪ/, U.S. /ˌreɪdioʊˈæˌseɪ/ transitive. To perform a radioassay on.
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1952 Science 21 Mar. 312/1 The writers radioassayed..flies that had been treated individually with acetone solutions of radioactive DDT about one year previously.
1972 Nature 22 Dec. 463/2 Out of a series of a hundred [silver] bars, we have radioassayed seven bars picked at random.
2003 Toxicol. & Appl. Pharmacol. 91 202 The remaining mice were whole-body radioassayed for 8 more days, and then their tissues were analyzed for radioactivity.
This entry has been updated (OED Third Edition, June 2008; most recently modified version published online March 2022).
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n.1945v.1952