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:
Nov. 14, 1989
Filed:
Jun. 05, 1984
Brent A Burdick, Rochester, NY (US);
Tai-Wing Wu, Rochester, NY (US);
David A Hilborn, Henrietta, NY (US);
Richard W Spayd, Rochester, NY (US);
Eastman Kodak Company, Rochester, NY (US);
Abstract
Disclosed herein is an assay useful for the quantitative determination of hemoglobin in whole blood. This assay utilizes a multizone element comprising a registration zone comprising particulate barium sulfate distributed in a 'blush' polymer, and a spreading zone having a void volume and an average pore size (e.g. greater than 5 microns) effective to accommodate whole blood. The element also contains an interactive composition capable of converting substantially all forms of hemoglobin into a detectable end product. One particularly useful interactive composition comprises a hemoglobin oxidizing agent (e.g. ferricyanide) and thiocyanate. Another useful interactive composition comprises an ionic surfactant, e.g. sodium octyl sulfate or sodium dodecyl sulfate.