Carbonate ionophore with improved selectivity
US6391175B1 · kind B1 · utility
0Cited by
8References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 21, 2000 |
| Grant date | May 21, 2002 |
| Priority date | — |
| Expiry date | Dec 13, 2020 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C235/84
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The invention pertains to a novel ionophore having the general structure: wherein R1, R2, R3 and R4 are independently straight or branched chain alkyl having 4 to 12 carbon atoms or the alkyl groups may optionally contain a cycloalkyl group having 3 to 8 carbon atoms or R1 and R2 or R3 and R4 together with N to which they are attached, can form a ring having 5 to 8 carbon atoms. This ionophore has increased selectivity for carbonate ions over other ions, especially salicylate. The invention includes membranes containing effective amounts of the novel ionophores and -sensors containing these membranes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.