On some analytical aspects of the determination of fullerenes in samples from the permian/triassic boundary layers

被引:24
作者
Braun, T
Osawa, E
Detre, C
Tóth, I
机构
[1] Eotvos Lorand Univ, Inst Inorgan & Analyt Chem, H-1443 Budapest, Hungary
[2] Futaba Corp, Prod Dev Ctr, Nanocarbon Res Ca LTD, Chosei, Chiba 2994395, Japan
[3] Geol Inst Hungary, H-1143 Budapest, Hungary
[4] Konkoly Observ Budapest, H-1525 Budapest, Hungary
关键词
D O I
10.1016/S0009-2614(01)01169-1
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
In a recent paper [Science 291 (2001) 1530] Becker et al. explain the greatest extinctions in the earth history at the P/Tr boundary by the impact of an extraterrestrial object and consider that hypothesis proven by the presence Of C-60 and C-60, endohedrally filled by extraterrestrial helium and argon isotope ratio they determined in P/Tr boundary layers. This paper raises some analytical aspects of those determinations which do not seem to be sufficiently well founded. (C) 2001 Published by Elsevier Science B.V.
引用
收藏
页码:361 / 362
页数:2
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