Measuring and testing – Gas content of a liquid or a solid – By vibration
Patent
1979-09-18
1981-12-08
Goldstein, Herbert
Measuring and testing
Gas content of a liquid or a solid
By vibration
G01N 2506
Patent
active
043041191
ABSTRACT:
A method and device for measuring the osmotic pressure on the basis of an improved supercooling process, whereby and wherein cryohydrate nuclei are made to generate almost spontaneously in a part of a sample liquid by cooling the above part down further to a temperature (to an extra-supercooled state) lower than the temperature of a supercooled state, wherethrough the sample liquid as a whole is induced to freeze statically. Because of a non-necessity of using any stirring rod, it becomes possible to design a small-sized device, to reduce the sample liquid to be used to a possible infinitesimal, and further to perform the continuous measurement with the aid of the adoption of a flow cell.
REFERENCES:
patent: 3173289 (1965-03-01), Davis
patent: 3203226 (1965-08-01), Fiske Jr.
patent: 3263487 (1966-08-01), Fiske Jr.
patent: 3695093 (1972-10-01), Hummel et al.
Prager et al. "Freezing-Point Depression: New Method For Measuring Ultramicro Quantities of Fluids", in Science, 10/63, vol. 142, No. 3589, pp. 237-239.
Goldstein Herbert
Kabushiki Kaisha Kyoto Daiichi Kagaku
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