globalchange  > 气候减缓与适应
DOI: 10.1029/2018JE005615
Scopus记录号: 2-s2.0-85051082185
论文题名:
Perchlorate-Driven Combustion of Organic Matter During Pyrolysis-Gas Chromatography-Mass Spectrometry: Implications for Organic Matter Detection on Earth and Mars
作者: Royle S.H.; Oberlin E.; Watson J.S.; Montgomery W.; Kounaves S.P.; Sephton M.A.
刊名: Journal of Geophysical Research: Planets
ISSN: 21699097
出版年: 2018
卷: 123, 期:7
起始页码: 1901
结束页码: 1909
语种: 英语
英文关键词: Astrobiology ; Life detection ; Mars ; Organic matter ; Perchlorate ; Thermal decomposition
英文摘要: The search for life on Mars targets the detection of organic matter from extant or extinct organisms. Current protocols use thermal extraction procedures to transfer organic matter to mass spectrometer detectors. Oxidizing minerals on Mars, such as perchlorate, interfere with organic detection by thermal extraction. Thermal decomposition of perchlorate releases oxygen, which promotes combustion of organic carbon. We have assessed the minimum mass ratio of organic carbon to perchlorate required to detect organic matter by thermal extraction and mass spectrometry. Locations on Mars with organic carbon to perchlorate ratios above 4.7–9.6 should be targeted. Because habitability is enhanced by the presence of liquid water and because perchlorate is a water-soluble salt, locations on Mars with evidence of past or recent liquid water are high priority targets. ©2018. The Authors.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/113591
Appears in Collections:气候减缓与适应

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作者单位: Impacts and Astromaterials Research Centre, Department of Earth Science and Engineering, Imperial College London, London, United Kingdom; Department of Chemistry, Tufts University, Medford, MA, United States; Now at Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, United States

Recommended Citation:
Royle S.H.,Oberlin E.,Watson J.S.,et al. Perchlorate-Driven Combustion of Organic Matter During Pyrolysis-Gas Chromatography-Mass Spectrometry: Implications for Organic Matter Detection on Earth and Mars[J]. Journal of Geophysical Research: Planets,2018-01-01,123(7)
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