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:
Feb. 04, 1986
Filed:
Oct. 11, 1983
Karl J Sanford, Rochester, NY (US);
Eastman Kodak Company, Rochester, NY (US);
Abstract
Disclosed herein is an assay for determination of albumin in a liquid sample. This assay involves the use of a dye of the structure: ##STR1## wherein n is zero or a positive integer up to 3; R.sup.1, R.sup.2 and R.sup.3 are independently hydrogen, alkyl, cycloalkyl, aryl, alkoxy, aroxy, hydroxy, carboxy, alkoxycarbonyl, amino or a nonaromatic heterocyclic group; and Z and Z.sub.1 independently represent the carbon, nitrogen, oxygen or sulfur atoms needed to complete a substituted or unsubstituted 5- to 7-membered carbocyclic or heterocyclic ring. This dye has a high affinity for albumin over a wide pH range. When the dye is bound to albumin, a shift in the dye spectral absorption occurs. Analytical elements containing this dye and an assay method are disclosed herein.