Methods of operating enzyme electrode sensors
US4935105A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 18, 1989 |
| Grant date | Jun 19, 1990 |
| Priority date | — |
| Expiry date | Oct 18, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S435/817
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An analytical method using a sensor of the enzyme electrode type is provided for determining in a sample the concentration of an analyte reactive with an enzyme present on the sensor to produce an electrochemically active species detectable by the sensor, which comprises applying a potential across the sensor to cause an electrical current to flow therethrough, contacting the sensor with the sample thereby causing a change in the current flow and, when a working potential is applied across the sensor, determining the concentration of the analyte as a function of the change in the current characterized in that at some time before the working potential is applied and the concentration of the analyte is determined a potential significantly in excess of the working potential is applied, whereby to reduce the period required to establish a signal sufficiently stable to permit the determination to be effected.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.