Other
Scientific paper
Sep 1977
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977jgr....82.4641b&link_type=abstract
Journal of Geophysical Research, vol. 82, Sept. 30, 1977, p. 4641-4658.
Other
121
Gas Analysis, Landing Sites, Mars Surface, Organic Materials, Planetary Composition, Viking Lander Spacecraft, Carbon Dioxide, Gas Chromatography, Gas Evolution, Mass Spectroscopy, Organic Compounds, Water Vapor
Scientific paper
A total of four Martian samples, one surface and one subsurface sample at each of the two Viking landing sites, Chryse Planitia and Utopia Planitia, have been analyzed for organic compounds by a gas chromatograph-mass spectrometer. In none of these experiments could organic material of Martian origin be detected at detection limits generally of the order of parts per billion and for a few substances closer to parts per million. The evolution of water and carbon dioxide, but not of other inorganic gases, was observed upon heating the sample to temperatures of up to 500 C. The absence of organic compounds seems to preclude their production on the planet at rates that exceed the rate of their destruction. It also makes it unlikely that living systems that behave in a manner similar to terrestrial biota exist, at least at the two Viking landing sites.
Anderson Donald M.
Biemann Klaus
Diaz Alphonso V.
Flory D.
Nier Alfred O.
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