Analytical apparatus for serial determination of nitrogen in sam

Details Analytical apparatus for serial determination of nitrogen in sam Analytical apparatus for serial determination of nitrogen in sam

1975-07-11

1976-06-22

Scovronek, Joseph

Chemistry: physical processes

Physical processes

Crystallization

23259, G01N 3116, G01N 3300

Patent

active

039648699

ABSTRACT:
This invention provides for an analytical apparatus for serial determination of nitrogen in samples by the Kjeldahl method, characterized in that it comprises from 4 to 7 flasks suspended vertically in a rotatable roundabout, each provided with a cover and a side tube extending into a common central container for the collection of combustion products, the roundabout being connected to a device which at regular intervals turns the roundabout one step forward to the next position, means for heating the flasks in one or two of the positions, means for blowing cooling air against the flasks, means for feeding diluent water to the flasks in a following position, means for introducing neutralising chemicals, means for generating and feeding steam to the flasks in the next following position, means for collecting and titrating the distillate, blowing means for emptying the flasks in the last position, and means for opening the covers on completion of the decomposition and for introducing diluent water into the flasks.

REFERENCES:
patent: 2726936 (1955-12-01), Bernheim
patent: 3103471 (1963-09-01), Asami
patent: 3174829 (1965-03-01), Stokstad
patent: 3335097 (1967-08-01), Gillis
patent: 3461042 (1969-08-01), Martin et al.
patent: 3616273 (1971-10-01), Oita
patent: 3790346 (1974-02-01), Ritchie

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