Colorimetric method and apparatus

Details Colorimetric method and apparatus Colorimetric method and apparatus

1982-11-24

1985-12-17

Evans, F. L.

Optics: measuring and testing

By shade or color

Fluid color transmission examination

356414, 356418, G01J 350

Patent

active

045589534

ABSTRACT:
In a colorimeter for use in a biochemistry field, an amount of transmitted light impinging upon a light receiving device is decreased corresponding to an absorbance of a reagent to be used by arranging a light adjusting device in the optical path. The amount of light transmitted through a blank cuvette is made substantially equal to an amount of light transmitted through the reagent. Therefore, even when the analysis is performed for an item using a high absorbance reagent, the deviation of the amount of transmitted light does not affect measured absorbance values, and thus it is possible to perform the color measurement in an accurate manner regardless of the reagent absorbance.

REFERENCES:
patent: 2051320 (1936-08-01), States
patent: 2421344 (1947-05-01), Mass
patent: 2447985 (1948-08-01), Mass
patent: 3569721 (1971-03-01), Goldberg et al.

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