Purines and triazines in the Murchison meteorite

Details Purines and triazines in the Murchison meteorite Purines and triazines in the Murchison meteorite

Apr 1975

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1975gecoa..39..471h&link_type=abstract

Geochimica et Cosmochimica Acta, vol. 39, Apr. 1975, p. 471-488. AEC-supported research;

Other

13

Azines, Chondrites, Meteoritic Composition, Nitrogen Compounds, Organic Compounds, Purines, Amines, Carbonaceous Meteorites, Chromatography, Mass Spectroscopy, Pyridines

Scientific paper

Two samples of the Murchinson C2 chondrite were analyzed for organic nitrogen compounds, using mass spectrometry in combination with paper and thin-layer chromatography. Under mild extraction conditions (water or formic acid), only alphatic amines and some alkylpyridines were seen. Drastic extraction conditions (hot 3-6 M HCL) a variety of nitrogen compounds appeared, including adenine (15 ppm), guanine (5ppm), melamine (20 ppm), cyanuric acid (20 to 30 ppm), guanylurea (30 to 45 ppm), and urea (25 ppm). It appears that these compounds are present mainly in macromolecular material. Failure of other investigators to identify these compounds in carboneceous chondrites is attributed to inadequate extraction conditions (water and formic acid rather than HCl).

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