Sorption tube atmospheric sampling system

Details Sorption tube atmospheric sampling system Sorption tube atmospheric sampling system

1978-06-15

1979-10-16

Yasich, Daniel M.

Measuring and testing

Measuring vessel

219535, G01N 124, G01N 1500

Patent

active

041709012

ABSTRACT:
A sorption tube atmospheric sampling system having a sorption tube, a vacuum pump and a flow meter. The sorption tube is made of a hollow elongated tubular-shaped element of rigid, non-corrosive material having a pair of mesh filters located at each end thereof and the sorbent material located therebetween. After the sampling operation has been completed, analysis of the collected pollutants within the sorption tube is accomplished by means of a conventional gas chromatography-mass spectrometry analysis in which Helium is passed through the sorption tube while the tube is located within a uniquely designed thermal desorption block. The desorption block is configurated so as to encompass the sorption tube during utilization thereof. As a result, it is now possible to utilize the same sorption tube for both the sampling and desorption operation.

REFERENCES:
patent: 1834581 (1931-12-01), Farrell et al.
patent: 3095739 (1963-07-01), Doolittle
patent: 3521493 (1970-07-01), Guizouarn et al.
patent: 3748905 (1973-07-01), Fletcher et al.
patent: 3932807 (1976-01-01), Wilson
patent: 4046014 (1977-09-01), Boehinger et al.
patent: 4091674 (1978-05-01), Amey

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