Immunoassay utilizing formazan-prelabeled reactants

Chemistry: molecular biology and microbiology – Measuring or testing process involving enzymes or... – Involving virus or bacteriophage

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435 26, 435805, 435810, 435 7, 436528, 436530, 436536, 436537, 436541, 436805, 436807, 436810, G01N 33544, G01N 33542, G01N 33536

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active

047865890

ABSTRACT:
An immunoassay procedure utilizing a formazan-labeled primary antibody to detect the presence of an antigen is disclosed. The formazan-labeled antibody is dissolved in a test fluid suspected to containing the antigen. A dipstick having a first section on which primary antibodies are bonded and a second section free of primary antibodies and antigens and blocked to prevent bonding of primary antibodies and antigens is immersed in the test fluid and removed after a select period of time. A difference in color between the first and second sections indicate the presence of the antigen.

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