Liquid/liquid fiber-optic fluorescence detector and absorbance analyzer
US4867559A · kind A · utility
82Cited by
6References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 6, 1988 |
| Grant date | Sep 19, 1989 |
| Priority date | — |
| Expiry date | Jan 6, 2008 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2201/065
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An apparatus and method are disclosed for measuring the fluorescence and absorbance of a liquid sample. A sample tube is provided that has an external surface and a bore therethrough for containing a sample fluid. A cladding fluid coats the bore of the sample tube to provide a smooth surface adjacent to the sample fluid. Excitation radiation is directed along the bore and detector means are provided to detect the excitation radiation, fluorescent radiation, and non-absorbed radiation. Comparator means compare the signals from the presence and concentration of various constituents in the liquid sample.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.