Dry reagent test strip comprising benzidine dye precursor and antipyrine compound
US5824491A · kind A · utility
183Cited by
36References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 17, 1996 |
| Grant date | Oct 20, 1998 |
| Priority date | — |
| Expiry date | May 17, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S435/97
- WIPO fieldBiotechnology
- WIPO sectorChemistry
Abstract
A dry reagent test strip for determining the concentration of an analyte in a liquid sample is described. The test strip has a matrix containing reagent detection chemistry, which includes an oxidase enzyme that can utilize the analyte as a substrate forming hydrogen peroxide, a benzidine dye precursor, a peroxidase enzyme, and an antipyrine compound. The addition of an antipyrine compound to the reagent detection chemistry provides a standard concentration graph which is substantially linear in a desired range of analyte concentration. The precision and accuracy of reading the test strip are enhanced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.