Multilayer analytical element for determination of total cholesterol in blood
US5350675A · kind A · utility
4Cited by
9References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 8, 1992 |
| Grant date | Sep 27, 1994 |
| Priority date | — |
| Expiry date | Sep 8, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T436/25375
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
In a dry type analytical element having at least one water-permeable layer including a porous spreading layer and at least one water-permeable layer, containing an enzyme having cholesterol esterase activity, the improvement which comprises containing a condensate of poly(ethylene oxide) monoalkylphenyl ether and formaldehyde at least in the water-permeable layer containing the enzyme or another water-permeable layer. In the analytical element of the invention, hemolysis does not occur and bound cholesterol is sufficiently decomposed to free cholesterol.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.