Alanine enantiomers in the Murchison meteorite
作者： S. Pizzarello , J. R. Cronin
DOI: 10.1038/28306
关键词:
摘要: Engel and Macko 1 have reported that alanine indigenous to the Murchison meteorite has an l-enantiomer excess of about 33%. Furthermore, they very similar δ15nitrogen values for l-alanine d-alanine; these are quite high in comparison with those terrestrial amino acids. On this basis, argued contamination by can be ruled out because, if it contributed excess, lower 15N content would significantly δ15N value observed l-alanine.
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M. H. Engel, S. A. Macko, Isotopic evidence for extraterrestrial non- racemic amino acids in the Murchison meteorite Nature. ,vol. 389, pp. 265- 268 ,(1997) , 10.1038/38460
KEITH KVENVOLDEN, JAMES LAWLESS, KATHERINE PERING, ETTA PETERSON, JOSE FLORES, CYRIL PONNAMPERUMA, I. R. KAPLAN, CARLETON MOORE, Evidence for Extraterrestrial Amino-acids and Hydrocarbons in the Murchison Meteorite Nature. ,vol. 228, pp. 923- 926 ,(1970) , 10.1038/228923A0