Reduction gas detector

Details Reduction gas detector Reduction gas detector

1981-08-10

1983-10-25

Marcus, Michael S.

Chemical apparatus and process disinfecting, deodorizing, preser

Analyzer, structured indicator, or manipulative laboratory...

Means for analyzing gas sample

250373, 2504611, 422 88, 436130, 436134, 436142, 436144, G01N 2175

Patent

active

044118678

ABSTRACT:
Apparatus for detecting the concentration of a gas by measuring the amount of mercury vapor generated when the gas is passed through a mercuric oxide bed. The apparatus includes a body having a central bore therein with a quartz rod at one end for directing ultraviolet light from a source through the central bore. A second quartz rod at the opposite end of the central bore directs the ultraviolet light to a detector coupled to an electronics circuit for analysis purposes. A fitting coupled to the body has a gas inlet port and a passage from the port to the central bore of the body. The mercuric oxide bed is across the passage so that the gas, in passing through the bed, causes mercury vapor to be generated and to pass into the central bore of the body. The amount of mercury vapor is measured by its spectral absorption in the ultraviolet range when the mercury vapor is in the central bore of the body.

REFERENCES:
patent: 2648598 (1953-08-01), Stitt et al.
patent: 3420636 (1969-01-01), Robbins
patent: 4023929 (1977-05-01), Becker et al.
patent: 4138215 (1979-02-01), Haber

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