Record details

    Assessment of Raman spectroscopy as a tool for the non-destructive identification of organic minerals and biomolecules for Mars studies
    Edwards, Howell G.M.
    Jehlička, Jan
    Vítek, Petr
Publication type
    článek v periodiku
Source title - serial
    Planetary and Space Science
    Roč. 57, č. 5-6
Thesaurus term
    Antarctic habitats
    Aromatic hydrocarbon minerals
    fossil resins
    Martian life
    natural oxalates
    Raman measurements in-situ
Abstract (in english)
   As part of the Pasteur suite of analytical instrumentation on ExoMars, the Raman/LIBS instrument will seek elemental and molecular information about geological, biological and biogeological markers in the Martian record. A key series of experiments on terrestrial Mars analogues, of which this paper addresses a particularly important series of compounds, is required to obtain the Raman spectra of key molecules and crystals, which are characteristic for each biomarker. Here, we present Raman spectra of several examples of organic compounds which have been recorded non-destructively-higher n-alkanes, polycyclic aromatic hydrocarbons, carotenoids, salts of organic acids, pure crystalline terpenes as well as oxygen-containing organic compounds. In addition, the lower limit of beta-carotene detection in sulphate matrices using Raman microspectroscopy was estimated.
    UK Praha, Přírodovědecká fakulta
Contributor code
    UK, PřF
Source format
Import date
    8. 8. 2012