Apparatus for absorptiometric analysis

Details Apparatus for absorptiometric analysis Apparatus for absorptiometric analysis

1985-12-23

1987-08-11

Evans, F. L.

Optics: measuring and testing

By dispersed light spectroscopy

Utilizing a spectrometer

422 63, 422 68, 436 47, G01J 308, G01J 342

Patent

active

046858016

ABSTRACT:
The beam from a xenon flashed lamp driven by a pulse drive system is guided through 12 illumination beam guiding optical fibers, to illuminate a reaction liquid contained in 12 reaction cuvettes (with every 4 reaction cuvettes being located at each of 3 different measuring stations). The beam transmitted through the reaction liquid is so led as to be incident on 12 transmitted beam guiding optical fibers. The beam emission ends of the transmitted beam guiding optical fibers are inserted into a support member at positions thereof which fall on a circle. The rotor is rotated in conjunction with a shaft. A pair of reflecting mirrors are secured to the rotor and shaft, respectively. The beams emitted from the transmitted beam guiding optical fibers are independently and consecutively led along the same optical path, to a pair of slit members disposed on the side of the rotor opposite the support member, while the rotor completes one rotation. The beam passed through the slit members is diffracted by a diffraction grating, and diffracted beams are detected by a photodetector array.

REFERENCES:
patent: 3697185 (1972-10-01), Kassel et al.
patent: 4063817 (1977-12-01), Shimamura et al.
patent: 4411519 (1983-10-01), Tagami
patent: 4487504 (1984-12-01), Goldsmith

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