| Literature DB >> 17793082 |
K Biemann, J Oro, P Toulmin, L E Orgel, A O Nier, D M Anderson, P G Simmonds, D Flory, A V Diaz, D R Rushneck, J A Biller.
Abstract
Two surface samples collected from the Chryse Planitia region of Mars were heated to temperatures up to 500 degrees C, and the volatiles that they evolved were analyzed with a gas chromatograph-mass spectrometer. Only water and carbon dioxide were detected. This implies that organic compounds have not accumulated to the extent that individual components could be detected at levels of a few parts in 10(9) by weight in our samples. Proposed mechanisms for the accumulation and destruction of organic compounds are discussed in the light of this limit.Entities:
Year: 1976 PMID： 17793082 DOI： 10.1126/science.194.4260.72
Source DB: PubMed Journal: Science ISSN： 0036-8075 Impact factor: 47.728