Dry-type analytical element for immunoassay
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United States of America Patent
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Mar 3, 1992
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N/A
app pub date -
Jun 21, 1989
filing date -
Jun 24, 1988
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Expired
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Abstract
A dry-type analytical element for immunoassay having at least one water-permeable layer for measuring a ligand in a sample according to enzyme immunoassay, which comprises, (A) a water-insoluble macromolecular substrate, and (B) an antibody, reacting with the ligand in the sample, conjugated with an enzyme capable of acting on the above water-insoluble macromolecular substrate. The above analytical substance further comprises, (C) a macromolecular substance which is a conjugate of the ligand or its derivative with a macromolecular compound in the above water-permeable layer of the above dry-type analytical element. The invention can conduct a highly sensitive and simple enzyme immunoassay.
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