Method of electrochemical analysis of an analyte
US8163163B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 10, 2005 |
| Grant date | Apr 24, 2012 |
| Priority date | — |
| Expiry date | May 2, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2458/30
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method of electrochemical analysis using a sensor electrode specific for an analyte under test. The method comprises immersing the sensor electrode in a sample solution suspected of containing the analyte; forming an electrochemically active complex by exposure to solutions containing secondary receptors or competing molecules labelled with a charged or enzyme label; and subsequently exposing the sensor to an electrochemically active solution. The measurement step comprises driving the sensor electrode potential to a predetermined fixed potential by applying a current or activation waveform then monitoring the potential difference between the sensor electrode and a reference electrode following removal of the holding current. Current, rate and potential can all be measured and used to determine analyte concentration or sensor state.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.