Cation-sensing composite structure and compounds for use therein
US5474743A · kind A · utility
9Cited by
16References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 21, 1993 |
| Grant date | Dec 12, 1995 |
| Priority date | — |
| Expiry date | Oct 21, 2013 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N33/84
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A fluorescent ionophoric compound comprises a cryptand portion and a coumarin portion substituted at the 3-position with an electron withdrawing or polarizable group. The compound, which exhibits good photostability, can be incorporated into cation-sensing composite structures useful in biological and environmental testing, which can be used with conventional glass optics, by means of convenient points of covalent attachment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.