Method and apparatus for analyzing trace components using a cryo

Details Method and apparatus for analyzing trace components using a cryo Method and apparatus for analyzing trace components using a cryo

1977-04-25

1978-05-30

Queisser, Richard C.

Measuring and testing

Gas analysis

Gas chromatography

250282, G01N 3104

Patent

active

040916553

ABSTRACT:
A method of analyzing a trace gas, in which the trace gas is transported in a carrier gas stream into a reaction chamber where the trace gas is ionized. The carrier gas includes or is a reagent gas which is ionized in the reaction chamber and the ions of which in turn form trace gas ions. The carrier gas, which is cryopumpable, is then injected with the trace gas ions into a vacuum chamber, the walls of which are cooled to cryopump the reagent gas and thus strip it away from the trace gas ions. The trace gas ions are focussed into an analyzer and analyzed.

REFERENCES:
patent: 3786249 (1974-01-01), Anbar et al.
patent: 3920987 (1975-11-01), Anbar et al.
patent: 4025790 (1977-05-01), Jetter et al.
patent: 4039828 (1977-08-01), Pokar et al.

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