Analytical system for analyzing CO.sub.2 content of a fluid

Details Analytical system for analyzing CO.sub.2 content of a fluid Analytical system for analyzing CO.sub.2 content of a fluid

1980-06-20

1981-11-10

Serwin, Ronald

Chemical apparatus and process disinfecting, deodorizing, preser

Analyzer, structured indicator, or manipulative laboratory...

Means for analyzing liquid or solid sample

23230B, 23232R, 422 81, 422 83, 422103, G01N 3350, G01N 110, G01N 714

Patent

active

042997941

ABSTRACT:
A total carbon dioxide analyzer system has a reaction chamber that includes a tube and a piston mounted for sliding movement in the tube to change the volume of the chamber. A valve coupled to the chamber has a sample inlet port and a reagent inlet port, and is movable between a first state in which the sample inlet port is connected to the chamber, a second state in which the reagent inlet port is connected to the chamber, and a third state in which the reaction chamber is sealed. A system controller coordinately operates the valve and moves the piston to increase the volume of said chamber to draw sample into the chamber for mixing with an acid reagent in the chamber, and then seals the chamber and increases the volume of the chamber to facilitate the release of carbon dioxide. A transducer then senses the pressure of carbon dioxide in the reaction chamber.

REFERENCES:
patent: 3068855 (1962-12-01), Furlong, Jr.
patent: 3222135 (1965-12-01), Ashmead
patent: 3756782 (1973-09-01), Phillips
patent: 3763422 (1973-10-01), MacPhee et al.
patent: 4019861 (1977-04-01), Dahms
patent: 4197853 (1980-04-01), Parker
IL 445 Chloride/TCO.sub.2 Analyzer-Operators Manual (1977), Instrumentation Laboratory, Inc., 113 Hartwell Ave., Lexington, MA 02173.
Peters et al., Quantitative Clinical Chem., vol. II, pp. 229-262b, Williams & Wilkins Co., Balt., Md., 1932.

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