The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 12, 1982
Filed:
Sep. 12, 1979
Applicant:
Inventors:
Assignee:
Ames-Yissum Ltd., Jerusalem, IL;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N / ; G01T / ; B65D / ;
U.S. Cl.
CPC ...
424-1 ; 2323 / ; 422 61 ; 424 12 ;
Abstract
A dry radioimmunoassay test composition comprising a mixture of a radiolabelled form of a ligand, i.e., a hapten or an antigen, an antibody for the ligand, and a heavy metal cation, e.g., cupric ion, to inhibit the complex-forming reaction between the radiolabelled ligand and the antibody. A method for preparing the dry test composition is also provided. In use in a radioimmunoassay, the dry test composition is reconstituted with an aqueous liquid and combined with a test sample and a chelating agent to bind the heavy metal cation, permitting reaction among any ligand present in the sample, the radiolabelled ligand, and the antibody. A test kit for performing such radioimmunoassay is also provided.