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On the ability of the Viking gas chromatograph–mass spectrometer to detect organic matter
Open accessAbstract
A recent paper by Navarro-Gonzalez et al. [Navarro-Gonzalez R, Navarro KF, de la Rosa J, Iniguez E, Molina P, Miranda LD, Morales P, Cienfuegos E, Coll P, Raulin F, et al. (2006) Proc Natl Acad Sci USA 103:16089–16094] claims to show that the Viking GCMS (gas chromatograph–mass spectrometer) experiment, which carried out a search for organic matter at the surface of Mars in 1976, “may have been blind to low levels of organics.” To rebut this assertion, the Viking experiment, test data, and results on Mars are reviewed, and the fallacies in the design, execution, and interpretation of the new experiments presented by Navarro-Gonzalez et al. are critically examined.
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The other two Viking metabolism-detecting experiments could find no evidence of biological activity down to their limit of detectability, and the GC-MS instrument could detect no trace of organic molecules in the samples.
“However, the other two metabolism-detecting experiments could find no evidence of biological activity down to their limit of detectability. Furthermore, the GC-MS instrument could detect no trace of organic molecules in the samples.”
From The Astrobiology Primer v2.0 (2016) · cites this paper as Biemann, 2007
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“Interpretation of these contradictory results has been a matter of debate for over three decades (Klein et al., 1976; Klein, 1977, 1979; Ponnamperuma et al., 1977; Owen, 1979; Navarro-González et al., 2006, 2010; Biemann, 2007).”
Metadata
- Authors
- Biemann, K.
- Affiliations
- Massachusetts Institute of Technology (US)
- Corresponding author
- Biemann, Klaus
- Venue
- Proceedings of the National Academy of Sciences
- Publisher
- National Academy of Sciences
- Published
- 2007-06-19
- Volume
- 104
- Issue
- 25
- Pages
- 10310-10313
- ISSN
- 0027-8424 (ISSN-L)
- 1091-6490
- PMC
- PMC1965509
- OpenAlex
- W2054522114
- Cited by
- 62
- References
- 0
- Citations by year
- 2024: 3 · 2023: 4 · 2022: 4 · 2021: 2 · 2020: 1 · 2018: 4 · 2017: 4 · 2016: 3 · 2015: 5 · 2014: 4 · 2013: 2 · 2012: 2
- FWCI
- 3.59
- Type
- journal article
- Language
- en
- Open access
- green
- www.ncbi.nlm.nih.gov
- Locations
- Proceedings of the National Academy of Sciences (publishedVersion)
- PubMed Central (publishedVersion)
- PubMed (publishedVersion)
- Topics
- Physical Sciences › Earth and Planetary Sciences › Space and Planetary Science › Planetary Science and Exploration
- Physical Sciences › Earth and Planetary Sciences › Space and Planetary Science › Astro and Planetary Science
- Physical Sciences › Physics and Astronomy › Astronomy and Astrophysics › Space Science and Extraterrestrial Life
- Keywords
- Viking landers, organic matter detection, Mars surface, detection sensitivity, experimental design critique
- MeSH terms
- Extraterrestrial Environment, Gas Chromatography-Mass Spectrometry, Organic Chemicals, Soil, Space Flight
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