Homogeneous process for the detection and/or determination by luminescence of an analyte in a medium in which it may be present
US5279943A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 19, 1993 |
| Grant date | Jan 18, 1994 |
| Priority date | — |
| Expiry date | Jan 19, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S436/817
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present invention relates to a homogeneous process for the detection and/or determination of an analyte in a medium in which it may be present, by disclosing the reaction product of the analyte and a corresponding receptor, process consisting in: 1) adding to said medium a first reagent consisting of a receptor for the said analyte; 2) adding a second reagent consisting of at least one of the components of the reaction product of the analyte and at least one of its receptors; one of the two reagents being coupled with a luminescent compound and the other reagent possessing a heavy atom or units containing a heavy atom; 3) incubating the medium after addition of each reagent or after the addition of both reagents; 4) exciting the resulting medium and 5) measuring at equilibrium or during the kinetics, the signal emitted by the luminescent compound, said signal being modulated by the heavy atom effect.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.