Organic Constituents of Meteorites

Briggs, Michael H.

doi:10.1038/1911137a0

Cited by 42 publications

(6 citation statements)

References 8 publications

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“…UV and IR spectroscopy suggested the presence of acid groups in water extracts of Mokoia. 147 GC 148 and IR spectroscopy 127 of solvent extracts confirmed their presence in Orgueil (CI1). However, concentrations of these compounds in the surface portions of the meteorites analysed and a dominance of the terrestrially most common chain lengths (C 16 , C 18 ) suggested an origin by terrestrial contamination.…”

Section: Long Chain Monocarboxylic Acidsmentioning

confidence: 84%

Organic compounds in carbonaceous meteorites

2002

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The carbonaceous chondrite meteorites are fragments of asteroids that have remained relatively unprocessed since the formation of the solar system 4.6 billion years ago. These carbon-rich objects contain a variety of extraterrestrial organic molecules that constitute a record of chemical evolution prior to the origin of life. Compound classes include aliphatic hydrocarbons, aromatic hydrocarbons, amino acids, carboxylic acids, sulfonic acids, phosphonic acids, alcohols, aldehydes, ketones, sugars, amines, amides, nitrogen heterocycles, sulfur heterocycles and a relatively abundant high molecular weight macromolecular material. Structural and stable isotopic characteristics suggest that a number of environments may have contributed to the organic inventory, including interstellar space, the solar nebula and the asteroidal meteorite parent body. This review covers work published between 1950 and the present day and cites 193 references.

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Section: Long Chain Monocarboxylic Acidsmentioning

confidence: 84%

Organic compounds in carbonaceous meteorites

2002

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“…The first published report of organic matter within a carbonaceous chondrite was a study of the Alais CI1 carbonaceous chondrite in 1834 [8]. The earliest investigations of the chemical composition of soluble organic matter in carbonaceous chondrites began with bulk carbon measurements of solvent extracts, and analyses of hydrocarbons and amino acids, with some uncertainties distinguishing between terrestrial and extraterrestrial origins (e.g., [9,10,11,12]). The fall of the Murchison CM2 carbonaceous chondrite in 1969 and, subsequently, the first measurements of non-protein amino acids in Murchison [13] led to greater scientific interest in meteoritic organics and significant improvements in analytical sensitivity.…”

Section: Sample Typesmentioning

confidence: 99%

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

Simkus

Aponte

Elsila

et al. 2019

Life

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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.

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“…Ultraviolet (UV) and infrared (IR) spectroscopy suggested the presence of acid groups in water extracts of Mokoia (Briggs, 1961). Ultraviolet (UV) and infrared (IR) spectroscopy suggested the presence of acid groups in water extracts of Mokoia (Briggs, 1961).…”

Section: Long-chain Monocarboxylic Acidsmentioning

confidence: 99%

“…The first reports of the potential detection of purine and pyrimidine bases in carbonaceous chondrites appeared in the early 1960s and relied on spectroscopic data from water extracts (Briggs, 1961;Calvin and Vaughn, 1960). The first reports of the potential detection of purine and pyrimidine bases in carbonaceous chondrites appeared in the early 1960s and relied on spectroscopic data from water extracts (Briggs, 1961;Calvin and Vaughn, 1960).…”

Section: Nucleic Acid Bases and Other Nitrogen Heterocyclesmentioning

confidence: 99%

Organic Geochemistry of Meteorites

Sephton¹

2014

Treatise on Geochemistry

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Organic Constituents of Meteorites

Cited by 42 publications

References 8 publications

Organic compounds in carbonaceous meteorites

Organic compounds in carbonaceous meteorites

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

Organic Geochemistry of Meteorites

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