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:
Apr. 25, 1995
Filed:
Feb. 13, 1992
Wayne Schrier, Cupertino, CA (US);
Pawanjit S Sethi, Livermore, CA (US);
Prithipal Singh, Los Altos, CA (US);
Chemtrak, Inc., Sunnyvale, CA (US);
Abstract
Systems are provided for the detection of hydrogen peroxide for determination of analytes, where a N-alkylated 3-oxyaniline derivative is covalently bonded to a bibulous support and the other component for forming an indamine dye may be non-covalently bound to the support. Upon passage of a transport medium across the support in the presence of hydrogen peroxide and a peroxidase, an indamine dye is formed. Where a limited amount of hydrogen peroxide is introduced at a site proximal to one end of the support, and the hydrogen peroxide migrates toward the other end, the distance of color development will be related to the amount of hydrogen peroxide, which can be correlated to the amount of analyte in a sample.