作者: G.G. Managadze , A.A. Safronova , K.A. Luchnikov , E.A. Vorobyova , N.S. Duxbury
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摘要: We propose a new technique for the detection of microorganisms by elemental composition analyses sample extracted from regolith, permafrost, and ice extraterrestrial bodies. also describe design ABIMAS instrument, which consists onboard time-of-flight laser mass-reflectron (TOF LMR) preparation unit (SPU) biomass extraction. This instrument was initially approved to fly on board ExoMars 2020 lander mission. The can be used analyze possible microbial communities compare it that terrestrial microorganisms. have conducted numerous laboratory studies confirm possibility identification via following biomarkers: P/S Ca/K ratios, C N abundances. underline only combination these factors will allow one discriminate samples geological ones. Our has been tested experimentally in trials cultures polar permafrost as analogues martian soils. discuss various methods extracting preparation. developed search identify different subsurface other planets, satellites, comets, asteroids-in particular, Europa, Ganymede, Enceladus. Key Words: Mass spectrometry-Life-detection instruments-Biomarkers-Earth Mars-Biomass spectra. Astrobiology 17, 448-458.