富勒烯
前寒武纪
质谱法
电离
分析化学(期刊)
解吸
碳纤维
激光器
热脱附
谱线
化学
材料科学
地质学
地球化学
物理
环境化学
光学
物理化学
有机化学
色谱法
离子
吸附
复合材料
复合数
天文
作者
Peter R. Buseck,Semeon J. Tsipursky,Robert L. Hettich
出处
期刊:Science
[American Association for the Advancement of Science (AAAS)]
日期:1992-07-10
卷期号:257 (5067): 215-217
被引量:320
标识
DOI:10.1126/science.257.5067.215
摘要
By means of high-resoluton transmission electron microscopy, both C(60) and C(70) fullerenes have been found in a, carbon-rich Precambrian rock from Russia The fullerenes were confirmed by Fourier transform mass spectrometry with both laser desorption and thermal desorption/electron-capture methods to verify that the fullerenes were indeed present in the geological sample and were not generated by the laser ionization event. The mass spectra were measured under conditions sufficient to resolve the (13)C/(12)C isotopic ratios for C(60) and C(70) and indicate that these ratios correspond to the normal range of isotopic values.
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