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Thermochemolysis: A New Sample Preparation Approach for the Detection of Organic Components of Complex Macromolecules in Mars Rocks via Gas Chromatography Mass Spectrometry in SAM on MSLOrganic chemicals, when present in extraterrestrial samples, afford precious insight into past and modern conditions elsewhere in the Solar System . No single technology identifies all molecular components because naturally occurring molecules have different chemistries (e.g., polar vs. non-polar, low to high molecular weight) and interface with the ambient sample chemistry in a variety of modes (i.e., organics may be bonded, absorbed or trapped by minerals, liquids, gases, or other organics). More than 90% of organic matter in most natural samples on Earth and in meteorites is composed of complex macromolecules (e.g. biopolymers, complex biomolecules, humic substances, kerogen) because the processes that tend to break down organic molecules also tend towards complexation of the more recalcitrant components. Thus, methodologies that tap the molecular information contained within macromolecules may be critical to detecting extraterrestrial organic matter and assessing the sources and processes influencing its nature.
Document ID
20120018013
Document Type
Conference Paper
Authors
Eugenbrode, J. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Glavin, D. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Dworkin, J. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Conrad, P. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Mahaffy, P. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Date Acquired
August 25, 2013
Publication Date
March 7, 2011
Subject Category
Space Sciences (General)
Report/Patent Number
GSFC.OVPR.6677.2012
Meeting Information
Lunar and Planetary Science Conference(The Woodlands, TX)
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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