Compound-Specific Carbon Isotope Compositions of Aldehydes and Ketones in the Murchison Meteorite.

ABSTRACT: Compound-specific carbon isotope analysis (δ¹³C) of meteoritic organic compounds can be used to elucidate the abiotic chemical reactions involved in their synthesis. The soluble organic content of the Murchison carbonaceous chondrite has been extensively investigated over the years, with a focus on the origins of amino acids and the potential role of Strecker-cyanohydrin synthesis in the early solar system. Previous δ¹³C investigations have targeted α-amino acid and α-hydroxy acid Strecker products and reactant HCN; however, δ¹³C values for meteoritic aldehydes and ketones (Strecker precursors) have not yet been reported. As such, the distribution of aldehydes and ketones in the cosmos and their role in prebiotic reactions have not been fully investigated.

SUBMITTER: Simkus DN 

PROVIDER: S-EPMC7241578 | biostudies-literature | 2019 Jan

REPOSITORIES: biostudies-literature