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:
Jul. 06, 1982
Filed:
Jul. 14, 1980
Tai-Wing Wu, Rochester, NY (US);
Eastman Kodak Company, Rochester, NY (US);
Abstract
A method is described for the selective determination of the conjugated bilirubin (B.sub.c) or unconjugated bilirubin (B.sub.u), as well as the total bilirubin (B.sub.T), content of an aqueous liquid. The method comprises contacting the aqueous liquid with an analytical element having a dry reagent zone comprising an interactive mordant for bilirubin and thereafter detecting the absorption or emission spectra of the aqueous liquid at two or more wavelengths. The respective molar absorption or emission characteristics of B.sub.u and B.sub.c are predetermined for at least two of these wavelengths using a molecular weight of 584 for B.sub.u and a molecular weight in the range from about 750 to about 940 for B.sub.c. The B.sub.u, B.sub.c and/or B.sub.T content is determined from such spectra and absorption or emission characteristics. The interactive mordant for bilirubin is used to enhance the absorption characteristics or produce fluorescent emission of mordanted bilirubin.