Electrochemical determination of analytes
US7771583B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 18, 2007 |
| Grant date | Aug 10, 2010 |
| Priority date | — |
| Expiry date | Aug 13, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N27/3274
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Determination of an analyte with increased accuracy is achieved by electrochemically determining an initial analyte concentration, performing a plurality of amperometric/potentiometric switching cycles, observing a characteristic of the signal during each of the plurality of switching cycles, determining an averaged value for the characteristic of the signal, and correcting the initial measurement value to arrive at a final measurement value of analyte concentration or rejecting the initial measurement value depending on the averaged value of the characteristic of the signal. The characteristic of the signal that is observed is not per se indicative of the amount of analyte present in a sample. Rather, it is a characteristic of the signal that reflects the quality of the electrodes, the extent of fill of the electrochemical cell or characteristics of the sample other than analyte concentration such as oxygen levels or hematocrit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.