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.

Date of Patent:
Oct. 25, 1994

Filed:

Dec. 21, 1992
Applicant:
Inventor:

Annie L Wu, Penfield, NY (US);

Assignee:

Eastman Kodak Company, Rochester, NY (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N / ; G01N / ; G01N / ;
U.S. Cl.
CPC ...
435-794 ; 435-79 ; 435-792 ; 436518 ; 422 56 ; 422 681 ;
Abstract

A specific binding immunoassay method for reducing the 'hook' effect for the measurement of C-Reactive Protein has been discovered for both solution and dry analytical elements comprising contacting a liquid sample containing C-reactive protein in the presence of calcium ions with (a) a first antibody Ab1 specific for C-reactive protein, Ab1 being immobilized on a water-insoluble substrate and (b) a labeled, unbound second antibody Ab2 specific for C-reactive protein to obtain a water-insoluble complex of Ab1, ligand, and Ab2; (2) separating the water-insoluble complex from the liquid sample and unreacted Ab2; and (3) measuring either the amount of Ab2 associated with said water-insoluble complex or the amount of unreacted Ab2 as an indication of the amount of C-reactive protein in the sample.


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