End-To-END Performance of the future MOMA intrument aboard the EXOMARS MISSION

Abstract : After the SAM experiment aboard the curiosity rover, the Mars Organic Molecule Analyzer (MOMA) experiment aboard the future ExoMars mission will be the continuation of the search for the organic composition of the Mars surface with the advantage that the sample will be extracted as deep as 2 meters below the martian surface to minimize effects of radiation and oxidation on organic materials. To analyse the wide range of organic composition (volatile and non volatils compounds) of the martian soil MOMA is composed with an UV laser desorption / ionization (LDI) and a pyrolysis gas chromatography ion trap mass spectrometry (pyr-GC-ITMS). In order to analyse refractory organic compounds and chirality samples which undergo GC-ITMS analysis may be submitted to a derivatization process, consisting of the reaction of the sample components with specific reactants (MTBSTFA [1], DMF-DMA [2] or TMAH [3]). To optimize and test the performance of the GC-ITMS instrument we have performed several coupling tests campaigns between the GC, providing by the French team (LISA, LATMOS, CentraleSupelec), and the MS, providing by the US team (NASA, GSFC). Last campaign has been done with the ITU models wich is similar to the flight model and wich include the oven and the taping station providing by the German team (MPS). The results obtained demonstrate the current status of the end-to-end performance of the gas chromatography-mass spectrometry mode of operation. References:[1] Buch, A. et al. (2009) J chrom. A, 43, 143-151. [2] Freissinet et al. (2011) J Chrom A, 1306, 59-71. [3] Geffroy-Rodier, C. et al. (2009) JAAP, 85, 454-459.
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Submitted on : Friday, December 30, 2016 - 5:46:06 PM
Last modification on : Friday, October 4, 2019 - 1:27:48 AM

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  • HAL Id : insu-01423635, version 1

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Arnaud Buch, Veronica T. Pinnick, Cyril Szopa, Noël Grand, Ryan Danell, et al.. End-To-END Performance of the future MOMA intrument aboard the EXOMARS MISSION. AGU Fall Meeting 2016, Dec 2016, San Francisco, United States. pp.P21C-2143. ⟨insu-01423635⟩

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