Arid
DOI10.1016/j.asr.2008.05.001
Development of a gas chromatography compatible Sample Processing System (SPS) for the in-situ analysis of refractory organic matter in martian soil: preliminary results
Buch, A.1; Sternberg, R.2; Szopa, C.3; Freissinet, C.1,2; Garnier, C.1,2; Bekri, El J.1; Rodier, C.4; Navarro-Gonzalez, R.5; Raulin, F.2; Cabane, M.3; Stambouli, A.1; Glavin, D. P.6; Mahaffy, P. R.6
通讯作者Buch, A.
来源期刊ADVANCES IN SPACE RESEARCH
ISSN0273-1177
出版年2009
卷号43期号:1页码:143-151
英文摘要

In the frame of the 2009 Mars Science Laboratory (MSL) mission a new sample preparation system (SPS) compatible with gas chromatography-mass spectrometry (GC-MS) has been developed for the in situ analysis of complex organic Molecules in the Martian soil. The goal is to detect, if they exist, sonic of the key compounds that play an important role in life on Earth including carboxylic acids, amino acids and nucleobases.


Before analysis by GC-MS, all the targeted refractory compounds trapped in the soil sample must be extracted and chemically transformed (derivatization). The extraction is carried Out in a two step process which requires the separation and evaporation of the extraction solvent in order to concentrate the organic compounds of interest. To improve the compatibility of the technique for spaceflight a one step procedure is performed using only a thermal processing for the extraction step.


These two extraction methods are followed by a derivatization step which uses MTBSTFA (N-methyl-N-(tert-butyldimethylsilyl)trifluoroacetamide).


The sample preparation methods have been tested on "spiked" soil and on Atacama Desert soil coming from the aridest part of the desert located in Chile. All the targeted compounds have been detected by these two procedures, demonstrating the applicability of the technique for in-situ analysis. The one step procedure has been successfully tested on Atacama soil samples with a laboratory pilot reactor, developed for this study, within representative space operating conditions. (C) 2008 COSPAR. Published by Elsevier Ltd. All rights reserved.


英文关键词Derivatization Extraction solid-liquid GC-MS Amino acids Carboxylic acids Ultrasound Mars Isopropanol Water Atacama
类型Article
语种英语
国家France ; Mexico ; USA
收录类别SCI-E
WOS记录号WOS:000262541500018
WOS关键词SOLVENT-EXTRACTION ; MASS-SPECTROMETRY ; ASSISTED EXTRACTION ; LABORATORY PILOT ; ACTIVE COMPOUNDS ; AMINO-ACIDS ; MARS ; MOLECULES ; SEDIMENTS ; LIFE
WOS类目Astronomy & Astrophysics ; Geosciences, Multidisciplinary ; Meteorology & Atmospheric Sciences
WOS研究方向Astronomy & Astrophysics ; Geology ; Meteorology & Atmospheric Sciences
来源机构Universidad Nacional Autónoma de México ; E17
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/159511
作者单位1.Ecole Cent Paris, Lab Genie Procedes & Mat, F-92295 Chatenay Malabry, France;
2.Univ Paris 7 12, CNRS, UMR 7583, Lab Interuniv Syst Atmospher, F-94010 Creteil, France;
3.SA IPSL, Serv Aeron, F-91371 Verrieres Le Buisson, France;
4.UMR 6514, Lab Synth & Reactivite Subst Nat, F-86022 Poitiers, France;
5.Univ Nacl Autonoma Mexico, Inst Ciencias Nucl, Lab Quim Plasmas & Estudios Planetarios, Mexico City 04510, DF, Mexico;
6.NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA
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Buch, A.,Sternberg, R.,Szopa, C.,et al. Development of a gas chromatography compatible Sample Processing System (SPS) for the in-situ analysis of refractory organic matter in martian soil: preliminary results[J]. Universidad Nacional Autónoma de México, E17,2009,43(1):143-151.
APA Buch, A..,Sternberg, R..,Szopa, C..,Freissinet, C..,Garnier, C..,...&Mahaffy, P. R..(2009).Development of a gas chromatography compatible Sample Processing System (SPS) for the in-situ analysis of refractory organic matter in martian soil: preliminary results.ADVANCES IN SPACE RESEARCH,43(1),143-151.
MLA Buch, A.,et al."Development of a gas chromatography compatible Sample Processing System (SPS) for the in-situ analysis of refractory organic matter in martian soil: preliminary results".ADVANCES IN SPACE RESEARCH 43.1(2009):143-151.
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