Automatic chemical analysis devices and methods

Details Automatic chemical analysis devices and methods Automatic chemical analysis devices and methods

1982-07-21

1984-06-12

Marcus, Michael S.

Chemical apparatus and process disinfecting, deodorizing, preser

Analyzer, structured indicator, or manipulative laboratory...

Sample mechanical transport means in or for automated...

422 65, 422 68, 422 63, 422 83, 7386482, 436 43, G01N 2100, G01N 3504

Patent

active

044540957

ABSTRACT:
An automatic chemical analysis device particularly designed for determination of carbon content in liquid samples comprises a turret with peripheral cavities to receive and transport tubular encased liquid sample ampoules, a base plate on which the turret is journaled for rotation, a conveyor to deliver the encased ampoules into the turret cavities, an index unit to position ampoules at a work station, a sealable chamber into which encased ampoules may be inserted, a plunger to raise the encased ampoules into the chamber, a purge tube extending into the chamber from above, a gas supply to the purge tube and a piston to move the purge tube up and down in the chamber.
The method of analysis comprises breaking the tops of ampoules when positioned in the chamber by lowering the purge tube and then flowing a gas through the tube into the liquid sample in the opened ampoule and then out the chamber to a gas analyzer. Successive samples are moved by the turret to the work station for automated, repeated analysis.

REFERENCES:
patent: 1194990 (1916-08-01), Gaynor
patent: 3302452 (1967-02-01), Leslie
patent: 3322958 (1967-05-01), Heiss
patent: 3783694 (1974-01-01), Otte et al.
patent: 4226119 (1980-10-01), Buser

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