Liquid chromatography detector

Details Liquid chromatography detector Liquid chromatography detector

1980-04-09

1982-04-13

Myracle, Jerry W.

Measuring and testing

Liquid analysis or analysis of the suspension of solids in a...

Content or effect of a constituent of a liquid mixture

G01N 1500

Patent

active

043241310

ABSTRACT:
A method and apparatus for measuring the concentration of a solute in a solvent by measuring the change in acoustic attenuation in the solvent due to the presence of the solute. An acoustic wave generator separates a pair of identical chambers having solvent containing solute flowing through one and pure solvent through the other. Acoustic detectors are located in the chambers opposite the generator. In the amplitude differential method, acoustic waves of equal amplitude are sent into each chamber, and a differential amplitude between the attenuated waves from the two chambers is measured, from which the change in attenuation is determined. In the differential decay method, steady state resonances are excited in each chamber, and a differential amplitude between the decaying acoustic waves in each chamber is measured, from which the change in attenuation is determined.

REFERENCES:
patent: 3892127 (1975-07-01), Cirulis et al.
patent: 4166394 (1979-09-01), Figura

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