Method and apparatus for detecting strippable substances in liqu

Details Method and apparatus for detecting strippable substances in liqu Method and apparatus for detecting strippable substances in liqu

1992-10-08

1994-06-28

Anderson, Bruce C.

Radiant energy

Ionic separation or analysis

With sample supply means

250282, B01D 5944, H01J 4900

Patent

active

053249380

ABSTRACT:
For the continuous quantitative determination of volatile substances in lids, such as in particular halogenated hydrocarbons in process or waste waters, the invention proposes a corresponding method, according to which the liquid is led past a liquid-impermeable, but gas-permeable membrane and that the strippable substances in the liquid in their gas phase pass through the membrane and lead same through a measuring cell. An apparatus for performing the method is characterized by a flow chamber provided with a liquid-impermeable, but gas-permeable membrane for the liquids to be investigated and by a measuring cell for the substances to be investigated located on the membrane side remote from the flow chamber.

REFERENCES:
patent: 3943363 (1976-03-01), Amblerd
patent: 4041932 (1977-08-01), Fostick
patent: 4757198 (1988-07-01), Korte et al.
patent: 4810878 (1989-03-01), Kobayashi
patent: 5024952 (1991-06-01), Alsop
patent: 5147561 (1992-09-01), Burge et al.

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