Organic chemistry of Murchison meteorite: Carbon isotopic fractionation

Details Organic chemistry of Murchison meteorite: Carbon isotopic fractionation Organic chemistry of Murchison meteorite: Carbon isotopic fractionation

May 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986ceol.symp...40y&link_type=abstract

In NASA, Washington Second Symposium on Chemical Evolution and the Origin and Evolution of Life p 40 (SEE N86-26844 17-55)

Computer Science

Carbon Isotopes, Chemical Fractionation, Murchison Meteorite, Organic Chemistry, Alkanes, Carboxylic Acids, Chemical Analysis, Chemical Composition, Freezing, Solar Corona, Ultrasonics

Scientific paper

The carbon isotopic composition of individual organic compounds of meteoritic origin remains unknown, as most reported carbon isotopic ratios are for bulk carbon or solvent extractable fractions. The researchers managed to determine the carbon isotopic ratios for individual hydrocarbons and monocarboxylic acids isolated from a Murchison sample by a freeze-thaw-ultrasonication technique. The abundances of monocarboxylic acids and saturated hydrocarbons decreased with increasing carbon number and the acids are more abundant than the hydrocarbon with the same carbon number. For both classes of compounds, the C-13 to C-12 ratios decreased with increasing carbon number in a roughly parallel manner, and each carboxylic acid exhibits a higher isotopic number than the hydrocarbon containing the same number of carbon atoms. These trends are consistent with a kinetically controlled synthesis of higher homologues for lower ones.

Affiliated with

Also associated with

No associations

Rating

Organic chemistry of Murchison meteorite: Carbon isotopic fractionation does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Organic chemistry of Murchison meteorite: Carbon isotopic fractionation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Organic chemistry of Murchison meteorite: Carbon isotopic fractionation will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1773494