Organic analysis of the Antarctic carbonaceous chondrites
Thus far, organic analysis of carbonaceous chondrites has proven the only fruitful means of examining complex organic matter of extraterrestrial origin. The present paper presents the results of organic analysis of two Antarctic meteorites, Allan Hills (77306) and Yamato (74662), which may be consid...
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ftnasantrs:oai:casi.ntrs.nasa.gov:19820037373 2023-05-15T13:46:48+02:00 Organic analysis of the Antarctic carbonaceous chondrites Kotra, R. K. Shimoyama, A. Ponnamperuma, C. Hare, P. E. Yanai, K. Unclassified, Unlimited, Publicly available JAN 1, 1981 http://ntrs.nasa.gov/search.jsp?R=19820037373 unknown http://ntrs.nasa.gov/search.jsp?R=19820037373 Accession ID: 82A20908 Copyright Other Sources 55 Origin of life; June 22-27, 1980; Jerusalem; Israel 1981 ftnasantrs 2012-02-15T15:01:30Z Thus far, organic analysis of carbonaceous chondrites has proven the only fruitful means of examining complex organic matter of extraterrestrial origin. The present paper presents the results of organic analysis of two Antarctic meteorites, Allan Hills (77306) and Yamato (74662), which may be considered free from terrestrial contamination. Ion-exchange chromatography, gas chromatography and mass spectrometery of meteorite samples reveal the presence in Yamato of 15 and in Allan Hills of 20 protein and nonprotein amino acids, the most abundant of which are glycine and alanine. Abundances of the D and L enantiomers of each amino acid are also found to be nearly equal. Data thus indicate an abiotic extraterrestrial origin for the matter, and confirm a lack of terrestrial contamination. Other/Unknown Material Antarc* Antarctic NASA Technical Reports Server (NTRS) Antarctic The Antarctic Yamato ENVELOPE(35.583,35.583,-71.417,-71.417) Allan Hills ENVELOPE(159.667,159.667,-76.717,-76.717) |
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55 Kotra, R. K. Shimoyama, A. Ponnamperuma, C. Hare, P. E. Yanai, K. Organic analysis of the Antarctic carbonaceous chondrites |
topic_facet |
55 |
description |
Thus far, organic analysis of carbonaceous chondrites has proven the only fruitful means of examining complex organic matter of extraterrestrial origin. The present paper presents the results of organic analysis of two Antarctic meteorites, Allan Hills (77306) and Yamato (74662), which may be considered free from terrestrial contamination. Ion-exchange chromatography, gas chromatography and mass spectrometery of meteorite samples reveal the presence in Yamato of 15 and in Allan Hills of 20 protein and nonprotein amino acids, the most abundant of which are glycine and alanine. Abundances of the D and L enantiomers of each amino acid are also found to be nearly equal. Data thus indicate an abiotic extraterrestrial origin for the matter, and confirm a lack of terrestrial contamination. |
format |
Other/Unknown Material |
author |
Kotra, R. K. Shimoyama, A. Ponnamperuma, C. Hare, P. E. Yanai, K. |
author_facet |
Kotra, R. K. Shimoyama, A. Ponnamperuma, C. Hare, P. E. Yanai, K. |
author_sort |
Kotra, R. K. |
title |
Organic analysis of the Antarctic carbonaceous chondrites |
title_short |
Organic analysis of the Antarctic carbonaceous chondrites |
title_full |
Organic analysis of the Antarctic carbonaceous chondrites |
title_fullStr |
Organic analysis of the Antarctic carbonaceous chondrites |
title_full_unstemmed |
Organic analysis of the Antarctic carbonaceous chondrites |
title_sort |
organic analysis of the antarctic carbonaceous chondrites |
publishDate |
1981 |
url |
http://ntrs.nasa.gov/search.jsp?R=19820037373 |
op_coverage |
Unclassified, Unlimited, Publicly available |
long_lat |
ENVELOPE(35.583,35.583,-71.417,-71.417) ENVELOPE(159.667,159.667,-76.717,-76.717) |
geographic |
Antarctic The Antarctic Yamato Allan Hills |
geographic_facet |
Antarctic The Antarctic Yamato Allan Hills |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_source |
Other Sources |
op_relation |
http://ntrs.nasa.gov/search.jsp?R=19820037373 Accession ID: 82A20908 |
op_rights |
Copyright |
_version_ |
1766245229745143808 |