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Organic Analysis in the Miller Range 090657 CR2 Chondrite: Part 2 Amino Acid AnalysesPrimitive carbonaceous chondrites contain a wide variety of organic material, ranging from soluble discrete molecules to insoluble, unstructured kerogen-like components, as well as structured nano-globules of macromolecular carbon. The relationship between the soluble organic molecules, macromolecular organic material, and host minerals are poorly understood. Due to the differences in extractability of soluble and insoluble organic materials, the analysis methods for each differ and are often performed independently. The combination of soluble and insoluble analyses, when performed concurrently, can provide a wider understanding of spatial distribution, and elemental, structural and isotopic composition of organic material in primitive meteorites. Using macroscale extraction and analysis techniques in combination with in situ microscale observation, we have been studying both insoluble and soluble organic material in the primitive CR2 chondrite Miller Range (MIL) 090657. In accompanying abstracts (Cao et al. and Messenger et al.) we discuss insoluble organic material in the samples. By performing the consortium studies, we aim to improve our understanding of the relationship between the meteorite minerals and the soluble and insoluble organic phases and to delineate which species formed within the meteorite and those that formed in nebular or presolar environments. In this abstract, we present the results of amino acid analyses of MIL 090657 by ultra performance liquid chromatography with fluorescence detection and quadrupole-time of flight mass spectrometry. Amino acids are of interest because they are essential to life on Earth, and because they are present in sufficient structural, enantiomeric and isotopic diversity to allow insights into early solar system chemical processes. Furthermore, these are among the most isotopically anomalous species, yet at least some fraction are thought to have formed by aqueously-mediated processes during parent body alteration.
Document ID
20160002395
Acquisition Source
Johnson Space Center
Document Type
Conference Paper
Authors
Burton, A. S. (NASA Johnson Space Center Houston, TX, United States)
Cao, T. (California Univ. Merced, CA, United States)
Nakamura-Messenger, K. (NASA Johnson Space Center Houston, TX, United States)
Berger, E. L. (Jacobs Technology, Inc. Houston, TX, United States)
Messenger, S. (NASA Johnson Space Center Houston, TX, United States)
Clemett, S. J. (ERC, Inc. Moffett Field, CA, United States)
Aponte, J. C. (Catholic Univ. of America Washington, DC, United States)
Elsila, J. E. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Date Acquired
February 26, 2016
Publication Date
March 21, 2016
Subject Category
Lunar And Planetary Science And Exploration
Inorganic, Organic And Physical Chemistry
Report/Patent Number
JSC-CN-35148
Meeting Information
Meeting: Lunar and Planetary Science Conference
Location: The Woodlands, TX
Country: United States
Start Date: March 21, 2016
End Date: March 25, 2016
Sponsors: Lunar and Planetary Inst.
Distribution Limits
Public
Copyright
Public Use Permitted.

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