Single source multi-site photometric measurement system
US5112134A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 8, 1991 |
| Grant date | May 12, 1992 |
| Priority date | — |
| Expiry date | Jan 8, 2011 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2219/00702
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A multibeam photometric measuring device includes a light assembly comprising a single modulated light source along with a filter assembly for passing only a desired band of wavelengths and an optical system for suitably focusing light from the light source. A plurality of light transmitting means accept light and transmit it individually to each of the plurality of sites disposed on a multi-well sample plate. Enhancement of color distribution resulting from chromogenic reactions is provided by automatic agitation of the reacting agents within the sample wells before a reading is taken at each of the sampling intervals of a kinetic measurement sequence.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.