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

1
NASA Postdoctoral Program at NASA Goddard Space Flight Center, Greenbelt, MD 20771, USA
2
Solar System Exploration Division, NASA Goddard Space Flight Center, Greenbelt, MD 20771, USA
3
Department of Chemistry, Catholic University of America, Washington, D.C. 20064, USA
*
Author to whom correspondence should be addressed.
Received: 4 April 2019 / Revised: 18 May 2019 / Accepted: 27 May 2019 / Published: 6 June 2019
(This article belongs to the Special Issue Analytical Chemistry in Astrobiology)
Soluble organic compositions of extraterrestrial samples offer valuable insights into the prebiotic organic chemistry of the solar system. This review provides a summary of the techniques commonly used for analyzing amino acids, amines, monocarboxylic acids, aldehydes, and ketones in extraterrestrial samples. Here, we discuss possible effects of various experimental factors (e.g., extraction protocols, derivatization methods, and chromatographic techniques) in order to highlight potential influences on the results obtained from different methodologies. This detailed summary and assessment of current techniques is intended to serve as a basic guide for selecting methodologies for soluble organic analyses and to emphasize some key considerations for future method development. View Full-Text
Keywords: soluble organics; extraterrestrial samples; carbonaceous chondrites; amino acids; analytical chemistry; astrochemistry; astrobiology soluble organics; extraterrestrial samples; carbonaceous chondrites; amino acids; analytical chemistry; astrochemistry; astrobiology
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Simkus, D.N.; Aponte, J.C.; Elsila, J.E.; Parker, E.T.; Glavin, D.P.; Dworkin, J.P. Methodologies for Analyzing Soluble Organic Compounds in Extraterrestrial Samples: Amino Acids, Amines, Monocarboxylic Acids, Aldehydes, and Ketones. Life 2019, 9, 47.

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