Compositions and methods for multiple simultaneous immunoradiometric assay (IRMA) of analytes using radioisotope chelate labels
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United States of America Patent
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Mar 19, 1991
Issued Date -
N/A
app pub date -
Jun 8, 1987
filing date -
May 23, 1984
priority date (Note) -
Expired
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Abstract
Compositions and methods are disclosed for multiple simultaneous assays of different analytes using radioactive labeled antibodies to the analytes, at least one portion of the assay being an immunoradiometric assay in which there is employed a metal isotope label, e.g., .sup.57 Co, attached to an antibody to the analyte through a chelator, e.g., ethylenediaminetetraacetic acid. Multiple simultaneous immunoradiometric assays can be performed by this method, as can multiple simultaneous assays in which one portion of the assay is an immunoradiometric assay and another portion or portions involve one or more other radioassay techniques.
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