Magnesium ion selective membranes
US12050193B2 · kind B2 · utility
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Key dates
| Filing date | Jun 21, 2019 |
| Grant date | Jul 30, 2024 |
| Priority date | — |
| Expiry date | Aug 30, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N33/50
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Magnesium ion selective electrode membranes and the preparation thereof. The membranes are rendered highly selective for magnesium ions by the addition of acidic groups to the preferably PVC membrane, either by introducing a lipophilic compound comprising an acidic group covalently linked to a C4-C18 alkyl-substituted phenyl group (e.g. bis-4-octylphenyl phosphoric acid) into the membrane comprising the magnesium selective ionophore (e.g. a neutral ionophore 1,10-phenanthroline derivative) or by covalently linking an acidic (e.g. a carboxylic) group to the ionophore (e.g. a 1,10-phenanthroline derivative).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.