Constraining oxygen isotope exchange kinetics between organic compounds and water using electrospray ionization Orbitrap mass spectrometry, and implications for the oxygen isotopic compositions of meteoritic organics

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Surjyendu Bhattacharjee, John M. Eiler Geochimica et Cosmochimica ActaAvailable online 5 August 2025 LINK “Oxygen isotopic composition of organic compounds is an important tracer of processes and environmental conditions, with applications ranging from prebiotic organic…

Extraterrestrial organic compounds and cyanide in the CM2 carbonaceous chondrites Aguas Zarcas and Murchison

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José C. Aponte, Hannah L. McLain, Danielle N. Simkus, Jamie E. Elsila, Daniel P. Glavin, Eric T. Parker, Jason P. Dworkin, Dolores H. Hill, Harold C. Connolly, Jr. Dante S. Lauretta Meteoritics & Planetary ScienceVersion…

Methodologies for Analyzing Soluble Organic Compounds in Extraterrestrial Samples: Amino Acids, Amines, Monocarboxylic Acids, Aldehydes, and KetonesOPEN ACCESS 

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Danielle N. Simkus, José C. Aponte, Jamie E. Elsila, Eric T. Parker, Daniel P. Glavin and Jason P. Dworkin Life 2019, 9 (2), 47 LINK (OPEN ACCESS) PDF (DOWNLOAD) “Soluble organic compositions of extraterrestrial samples…

New insights into the heterogeneity of the Tagish Lake meteorite: Soluble organic compositions of variously altered specimens

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Danielle N. Simkus, José C. Aponte, Jamie E. Elsila, Robert W. Hilts, Hannah L. McLain, Christopher D. K. Herd LINK “The Tagish Lake carbonaceous chondrite exhibits a unique compositional heterogeneity that may be attributed to…

Compound‐specific carbon isotope compositions of aldehydes and ketones in the Murchison meteorite

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Danielle N. Simkus, José C. Aponte, Robert W. Hilts, Jamie E. Elsila, Christopher D. K. Herd Meteoritics & Planetary Science First published: 14 October 2018 LINK “Compound‐specific carbon isotope analysis (δ13C) of meteoritic organic compounds…

First Report of Aldehydes and Ketones in the Tagish Lake Meteorite: Optimized Methodology and Preliminary Results

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D. N. S. Simkus, R. W. Hilts, C. D. K. Herd, J. C. Aponte, J. E. Elsila 47th Lunar and Planetary Science Conference (2016), Abstract #2370 PDF

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