Optical detector for flowing sample and optical detection method

Details Optical detector for flowing sample and optical detection method Optical detector for flowing sample and optical detection method

1995-06-20

1997-08-26

McGraw, Vincent P.

Optics: measuring and testing

By dispersed light spectroscopy

Utilizing a spectrophotometer

356410, 356411, G01N 2185

Patent

active

056615582

ABSTRACT:
An optical detector for flowing sample comprises a light condenser for condensing a diverging monochrome light, a flow cell arranged in the course of convergence of the converged light beam, and a sample-side detector for receiving a sample-side light. Such a construction makes it possible to correct delicate changes of the light axis due to intensity, position, temperature changes of the light source, density change of the flowing liquid, and any change of other causes effectively for stable sample analysis without difficult optical adjustment.

REFERENCES:
patent: 3614242 (1971-10-01), Hrdina
patent: 4014612 (1977-03-01), Atwood et al.
patent: 4367041 (1983-01-01), Webb, Jr. et al.
patent: 5153679 (1992-10-01), Gilby
Nordal et al "Visible-light spectroscopy by photothermal radiometry using incoherent source," Appl. Phys. Lett. 38 (7) (1 Apr. 1981), pp. 486-488.

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