Binder composition and analytical element having stabilized peroxidase in layer containing the composition
US4874692A · kind A · utility
8Cited by
12References
17Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 20, 1987 |
| Grant date | Oct 17, 1989 |
| Priority date | — |
| Expiry date | Jul 20, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S436/826
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An analytical element has a peroxidase-labeled ligand analog distributed within a layer comprising from 0.1 to 10.0 g/m.sup.2 of poly(vinyl-alcohol) and from 0.2 to 20.0 g/m.sup.2 of glycerol. The concentration of the glycerol must be greater than 1 times the concentration of poly(vinylalcohol) in the layer. As a result, the peroxidase retains more of its stability prior to use. Such elements can be used to determine a number of different immunologically reactive analytes, such as digoxin.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.