Hollow conduit for use in determining concentration profiles of

Details Hollow conduit for use in determining concentration profiles of Hollow conduit for use in determining concentration profiles of

1986-12-22

1988-04-05

Levy, Stewart J.

Measuring and testing

Sampler, sample handling, etc.

Analyzer supplier

7386333, G01N 3500, G01N 126

Patent

active

047350954

ABSTRACT:
The invention relates to a hollow conduit for utilization in determining concentration profiles of liquid or gaseous substances along a route, wherein the conduit provided for accommodation of a testing medium, which latter is to be moved therethrough in chronological intervals and is to be guided past a detector, is fashioned so that the substances can penetrate into the interior of the conduit. This hollow conduit consists of a material through which the substances can diffuse into the interior of the conduit. In the interior of the conduit, a hollow innner conduit 3 is provided, the wall of which has openings 5 and which consists of a compound impermeable for the substances.

REFERENCES:
patent: 3867631 (1975-02-01), Briggs et al.
patent: 3964292 (1976-06-01), Jackson
patent: 4047437 (1977-09-01), Brooks
patent: 4092844 (1978-06-01), Oertle et al.

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