Organic Compounds from Insoluble Organic Matter Isolated from the Murchison Carbonaceous Chondrite by Heating Experiments
Abstract Insoluble organic matter isolated by an HF/HCl treatment of the Murchison carbonaceous chondrite was heated from room temperature to 800 °C at a rate of 10 °C min−1 under a helium atmosphere. Over 130 organic compounds were identified in its pyrolyzates, which mainly comprised the following...
| Published in: | Bulletin of the Chemical Society of Japan |
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| Main Authors: | , |
| Format: | Article in Journal/Newspaper |
| Language: | English |
| Published: |
Oxford University Press (OUP)
1996
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| Subjects: | |
| Online Access: | http://dx.doi.org/10.1246/bcsj.69.53 https://academic.oup.com/bcsj/article-pdf/69/1/53/56191773/bcsj.69.53.pdf |
| Summary: | Abstract Insoluble organic matter isolated by an HF/HCl treatment of the Murchison carbonaceous chondrite was heated from room temperature to 800 °C at a rate of 10 °C min−1 under a helium atmosphere. Over 130 organic compounds were identified in its pyrolyzates, which mainly comprised the following two groups: (1) benzene and naphthalene, and their alkyl derivatives; and (2) sulfur-containing heterocycles and their alkyl derivatives. The relative amounts of compounds released with increasing temperature during the heating process were monitored by a mass spectrometer. Those hydrocarbons were observed mainly over a temperature range of 300—600 °C. These results are generally similar to those of Yamato-791198, an Antarctic carbonaceous chondrite which we had previously analyzed. The results indicate that aliphatic and aromatic hydrocarbons, as well as S-containing heterocycles, are the major constituents of the insoluble organic matter of Murchison. Furthermore, the results suggest that the thermal history of Murchison on its parent body was similar to that of Yamato-791198. |
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