Mass spectrometry in the exploration of Mars
โ Scribed by Catherine Fenselau; Richard Caprioli; A. O. Nier; W. B. Hanson; A. Seiff; M. B. Mcelroy; N. W. Spencer; R. J. Duckett; T. C. D. Knight; W. S. Cook; K. Biemann; J. Oro; P. Toulmin III; L. E. Orgel; A. O. Nier; D. M. Anderson; P. G. Simmonds; D. Flory; A. V. Diaz; D. R. Rushneck; J. A. Biller; Tobias Owen; K. Biemann
- Publisher
- John Wiley and Sons
- Year
- 2003
- Tongue
- English
- Weight
- 323 KB
- Volume
- 38
- Category
- Article
- ISSN
- 1076-5174
- DOI
- 10.1002/jms.396
No coin nor oath required. For personal study only.
โฆ Synopsis
Two surface samples collected from the Chryse Planitia region of Mars were heated to temperatures up to 500 ยฐC, 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.
๐ SIMILAR VOLUMES
The Model-based Analysis and Reasoning in Science (MARS) project is involved in developing model-centered curriculum modules for middle-school science. MARS instruction focuses on a variety of physical, pictorial, and symbolic representations of theoretical entities, providing tangible objects that