Enantioselective Gas Chromatography in Search of the Origin of Biomolecular Asymmetry in Outer Space
| Autor: | Cornelia Meinert, Thomas Javelle, Uwe J. Meierhenrich, Iuliia Myrgorodska |
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| Rok vydání: | 2016 |
| Předmět: |
010504 meteorology & atmospheric sciences
Chemistry Enantioselective synthesis Analytical chemistry General Chemistry Martian soil Exploration of Mars 01 natural sciences Astrobiology Interstellar medium Meteorite 13. Climate action Extraterrestrial life 0103 physical sciences Molecular symmetry Homochirality 010303 astronomy & astrophysics 0105 earth and related environmental sciences |
| Zdroj: | Israel Journal of Chemistry. 56:1016-1026 |
| ISSN: | 0021-2148 |
| Popis: | Since the pioneering work of Emanuel Gil-Av and his associates at the Weizmann Institute of Science the direct gas chromatographic resolution of enantiomers has found its application in different fields of natural sciences, even expanding to space research and astrobiology. In these domains the resolution of chiral molecules of prebiotic relevance is of particular interest, since the determination of ratios between l- and d-enantiomers within non-terrestrial samples is assumed to shed light on the origin of biomolecular homochirality and the beginnings of life itself. According to an astrophysical scenario, the first molecular symmetry breaking event occurred upon irradiation of chiral organic molecules with circularly polarized light present in the interstellar medium. To examine this hypothesis, among others, chiral gas chromatographic stationary phases have been widely used to provide the differentiation of enantiomers in extracts of meteorites, samples of simulated interstellar ices and Mars soil analogues. Moreover several chiral capillary columns have been selected for in situ analyses of extraterrestrial organic matter by Mars missions and the cometary Rosetta mission. This review will highlight current advances of enantioselective gas chromatography applied to space science. |
| Databáze: | OpenAIRE |
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