Radioimmunoassay

{
  "id": "MLC-T-CHM-009888",
  "term": "Radioimmunoassay",
  "field": "Chemistry",
  "definition": "A highly sensitive immunoassay technique that measures the concentration of a substance, typically an antigen, in a sample by using antibodies and a radiolabeled antigen. The method relies on the competitive binding of labeled and unlabeled antigen to a limited number of antibody binding sites. The amount of bound radioactivity is inversely proportional to the concentration of the unlabeled antigen in the sample.",
  "subject": "Analytical Chemistry",
  "see_also": [
    "antibody",
    "antigen",
    "assay",
    "hapten",
    "radioactivity"
  ],
  "references": [
    "PAC, 1994, 66, 2513. 'Nomenclature for radioanalytical chemistry (IUPAC Recommendations 1994)' on page 2524 (https://doi.org/10.1351/pac199466122513)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/radioimmunoassay/"
}