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What is Radioimmunoassay (RIA) and Immunoradiometric assay (IRMA)?

April 26, 2017assay IRMA radioimmunoassay ria

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What is Radioimmunoassay (RIA) and Immunoradiometric assay (IRMA)?

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Radioimmunoassay (RIA) is a versatile in-vitro technique for the measurement of hormones, vitamins, drugs and other substances present in biological fluids, in most of the cases in serum. A slight variation in the above technique used for the same purpose is known as Immunoradiometric assay (IRMA) which offers better sensitivity, specificity and range.