单词 | radiostereoassay |
释义 | > as lemmasradiostereoassay radiostereoassay n. Brit. /ˌreɪdɪə(ʊ)stɛrɪəʊˈaseɪ/ , U.S. /ˌreɪdioʊˌstɛrioʊˈæˌseɪ/ [ < radio- comb. form2 + stereo- comb. form + assay n., after radioimmunoassay n.] rare a biological assay technique in which the test substance is determined by allowing it to bind to a suitable protein or antibody in competition with a known quantity of radioactively labelled material, the extent of reaction being measured radiologically; (usually applied to non-immunological methods such as radioenzymatic assay: cf. radioimmunoassay n.).ΘΚΠ the world > life > biology > biological processes > immunogenesis > [noun] > immunological assays radioimmunoassay1961 radioallergosorbent test1967 radiostereoassay1967 radioreceptor assay1970 1967 B. E. P. Murphy in Jrnl. Clin. Endocrinol. 27 973/2 Such methods have been termed by the author ‘competitive protein binding (CPB) analysis’ and by R. P. Ekins ‘saturation analysis’, but because of their basic similarity to radioimmunoassays..the name ‘radiostereoassay’ has also been suggested [by the writer] as an analogous term which could be applied to both types of assay. 1974 Nature 22 Feb. 563/2 Before it can act, vitamin D must first be converted to its 25-hydroxy derivative..in the liver, and this chief circulating metabolite can be measured by radio-stereo-assay, thus providing a precise index of vitamin D nutritional status. < as lemmas |
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