Verfahren und Vorrichtung zum Bestimmen strippbarer Substanzen aus Fluessigkeiten

For the continuous quantitative detection of volatile substances in liquids, in particular halogenated hydrocarbons in process water or effluent, the invention proposes a suitable process by which the liquid is passed through a liquid-impermeable but gas-permeable membrane, such that the strippable substances in the liquid penetrate the membrane in their gas phase and are fed through a measuring cell. A device for performing the process is characterized by a flow chamber provided with a liquid-impermeable but gas-permeable membrane for the liquids under test and by a measuring cell arranged on the side of the membrane facing away from the low chamber for the substances under test.