Color stable glucose test
US4273868A · kind A · utility
25Cited by
3References
1Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 23, 1979 |
| Grant date | Jun 16, 1981 |
| Priority date | — |
| Expiry date | Feb 23, 1999 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC12Q1/54
- WIPO fieldBiotechnology
- WIPO sectorChemistry
Abstract
Test means, such as a composition, a test device, method of making the test device and process for determining glucose in a body fluid sample are disclosed. More particularly, the contemplated test means comprises glucose oxidase, a peroxidatively active substance, such as peroxidase, and a 3,3',5,5'-tetraalkylbenzidine indicator in an amount sufficient rapidly to produce upon contact of the test means with a predetermined amount of a glucose containing sample, a stable colored reaction product. The preferred benzidine indicator is 3,3',5,5'-tetramethylbenzidine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.