Method of and apparatus for determining the similarity of a biological analyte from a model constructed from known biological fluids
US4975581A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 21, 1989 |
| Grant date | Dec 4, 1990 |
| Priority date | — |
| Expiry date | Jun 21, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2201/129
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The characteristics of a biological fluid sample having an analyte are determined from a model constructed from plural known biological fluid samples. The model is a function of the concentration of materials in the known fluid samples as a function of absorption of wideband infrared energy. The wideband infrared energy is coupled to the analyte containing sample so there is differential absorption of the infrared energy as a function of the wavelength of the wideband infrared energy incident on the analyte containing sample. The differential absorption causes intensity variations of the infrared energy incident on the analyte containing sample as a function of sample wavelength of the energy, and concentration of the unknown analyte is determined from the thus-derived intensity variations of the infrared energy as a function of wavelength from the model absorption versus wavelength function.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.