Method and arrangement for the continuous quantitative indicatio

Details Method and arrangement for the continuous quantitative indicatio Method and arrangement for the continuous quantitative indicatio

1977-06-16

1979-05-15

Serwin, R. E.

Chemistry: physical processes

Physical processes

Crystallization

422 91, G01N 2126

Patent

active

041545796

ABSTRACT:
The specification describes a method for the continuous quantitative indication of pollutants in air, in which a reagent solution taken from a storage container is first passed through the reference cell of a photometer, is then mixed in a reaction chamber with the gas to be examined and, dependent on the concentration of the pollutant, is decolorized or colored, is then passed through the measuring cell of the photometer, and is finally collected in a collection container, an indication corresponding to the concentration of pollutant being derived from the output of the photometer, and in which the reagent solution leaving the measuring cell and containing the pollutant is once again supplied to the reaction chamber and produces a more intensive reaction.

REFERENCES:
patent: 3567392 (1971-03-01), Schulze
patent: 3578406 (1971-05-01), Cho et al.
patent: 4003708 (1977-01-01), Taguchi et al.

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