Method for analyzing one ingredient of a three ingredient mixtur

Details Method for analyzing one ingredient of a three ingredient mixtur Method for analyzing one ingredient of a three ingredient mixtur

1977-01-28

1979-01-30

McGraw, Vincent P.

Optics: measuring and testing

By shade or color

With color transmitting filter

356407, 356436, G01J 348, G01J 346, G01N 2106

Patent

active

041369599

ABSTRACT:
A three ingredient mixture is eradiated with light rays of two separate wave lengths selected at which the absorption spectra of at least two of the materials of the mixture intersect. The light rays passing through the materials are detected and separated electrically so that they are processed with coefficients determined from ratios involving the absorption of at least two of the materials, so that the difference in the signals so obtained is quantitatively correlated to only one of the materials in the mixture.

REFERENCES:
patent: 3694092 (1972-09-01), Hashimoto et al.
patent: 3994590 (1976-11-01), DiMartini et al.

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