Method and apparatus for electrochemical analysis and an aqueous solution for use therein
US5288374A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 10, 1990 |
| Grant date | Feb 22, 1994 |
| Priority date | — |
| Expiry date | Sep 10, 2010 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N33/492
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method of electrochemical analysis involves contacting fluid samples of first and second different types in a mixed sequence with an electrochemical sensor, and also contacting the sensor with a standard fluid, in order to measure the values of an analytical item, e.g. ionic activity, in the samples with reference to a standard value of the same analytical item in the standard fluid. To improve response of the sensor, at each change in the sequence from the first sample type to the second sample type, the sensor is contacted with a second fluid having a value of the analytical item closer to the mean value of the analytical item in the second sample type than the value of the analytical item in the standard fluid. The method is applicable for example to analysis of blood serum and urine using an ion selective electrode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.