Optical indicator for determining the activity of an ion in a sample
US5723340A · kind A · utility
2Cited by
12References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 14, 1996 |
| Grant date | Mar 3, 1998 |
| Priority date | — |
| Expiry date | May 14, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N33/84
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An optical indicator for determining the activity of an ion in a sample is provided with an ionophor which is capable of selectively binding the ion to be measured. The ionophor has at least two functional groups that can form an electron donor acceptor (EDA) complex, the complex bond being broken up by the attachment of the ion to be determined. This will lead to a change in at least one of the measurable optical properties of the indicator in dependence on the activity of the ion to be measured.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.