Analysis of emulsions and suspensions

Details Analysis of emulsions and suspensions Analysis of emulsions and suspensions

1977-12-22

1980-06-10

Smith, Alfred E.

Radiant energy

Invisible radiant energy responsive electric signalling

Infrared responsive

250339, 250345, G01J 100

Patent

active

042074690

ABSTRACT:
An apparatus for the quantitative estimation of the dispersion medium and one or more components forming the disperse phase of an emulsion or suspension or mixture thereof, wherein the mean particle size of the disperse phase is less than a selected absorption wavelength of the dispersion medium and also less than a selected absorption wavelength for each of one or more components of the disperse phase, and the said selected absorption wavelength of the dispersion medium is at a wavelength differing substantially from the or each selected absorption wavelength for the disperse phase component or components and the absorption by the or each disperse phase component is stronger than the absorption by the dispersion medium at the selected absorption wavelength for the or each disperse phase component.
The apparatus uses a double beam infrared absorption spectrometer, data storage means, and logic circuitry for providing electronic data equivalents to the natural logarithm of the ratio of the beam energies subsequent to passage through the two test cells.

REFERENCES:
patent: 3730627 (1973-05-01), Kent
patent: 3839633 (1974-10-01), McKenna et al.
patent: 3955096 (1976-05-01), Faulhaber
patent: 3968367 (1976-07-01), Berg

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