Method for detecting amines and aldehydes using lanthanide chelate fluorophores based on dihydropyridine condensation products
US4968631A · kind A · utility
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4Claims
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Key dates
| Filing date | Sep 29, 1989 |
| Grant date | Nov 6, 1990 |
| Priority date | — |
| Expiry date | Sep 29, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T436/200833
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Fluorescent lanthanide chelates are formed by reacting a .beta.-diketone, an aldehyde, and an amine to produce a dihydropyridine condensation product which is then chelated with a lanthanide metal ion. These fluorescent chelates are made into wavelength-shifting devices by physically supporting the chelates on a polymer. Such wavelength-shifting devices can be optically coupled to a photoelectric cell to increase the portion of the solar spectrum available to the cell for conversion into electricity. Furthermore, the reaction producing the fluorescent lanthanide chelates is used to detect amines or aldehydes in a sample.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.