A hydrogen flame ionization detector (Hyfid) has been developed for conducting martian and lunar experiments to detect life-derived organic matter in the soil. the detector is integrated with a soil pyrolyzer system of 25-mg soil capacity from which pyrolysis products are pneumatically transported to the detector for analysis. the hyfid utilizes hydrogen with a helium diluent and pure oxygen to yield a sensitivity greater than 0.25 coulomb/gram-atom carbon: Organic matter can be detected to 0.1 ppm. A programmer automates every task of the analysis cycle. In addition, a detector signal current electrometer with a seven-decade range without range switching has been developed.
A hydrogen flame ionization detector for martian/lunar life detection experiments
ISA Transactions ; 10 , 1 ; 58-66
1971
9 Seiten, 12 Bilder, 1 Tabelle, 15 Quellen
Aufsatz (Zeitschrift)
Englisch
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