Method and scavenger gas for the analysis of oxygen-containing c

Details Method and scavenger gas for the analysis of oxygen-containing c Method and scavenger gas for the analysis of oxygen-containing c

1989-08-14

1992-09-29

Housel, James C.

Chemistry: analytical and immunological testing

Oxygen containing

136161, 136166, 136171, 356316, G01N 2173

Patent

active

051513714

ABSTRACT:
The oxygen-selectivity of an atomic emission detection system is enhanced by introducing a carbon-containing, preferably non-oxygenated, gas as a portion of the reagent gas. In preferred embodiments, the reagent gas is nitrogen and/or hydrogen and up to about 50 volume percent of a C.sub.1 -C.sub.4 hydrocarbon gas.

REFERENCES:
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patent: 3887280 (1975-06-01), McLean et al.
patent: 3945799 (1976-03-01), Honma
patent: 4234315 (1980-11-01), Scott
patent: 4293220 (1981-10-01), Denton et al.
patent: 4601882 (1986-07-01), Benner
"Consideration of as Atmospheric Pressure Microwave-Induced Helium Plasma . . . ", Slatkavitz et al., J. of Chrom., 335 (1986) 117-126.
Slatkavits, et al., Journal of Chromatography, 1986, 355, 177-126.
King, et al., Anal. Chem., 1986, 58, 642-647.

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