Patent · US Expired

Single source multi-site photometric measurement system

US4968148A · kind A · utility

81Cited by
31References
30Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMay 26, 1988
Grant dateNov 6, 1990
Priority date
Expiry dateMay 26, 2008

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG01N2201/08
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

Abstract

A multibeam photometric measuring device includes a single 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. Light is transmitted individually to each of a plurality of sites disposed on a multi-well sample plate. Enhancement of color distribution 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.