Abstract
A relatively heavy petroleum fraction called distillate aromatic extract (DAE) which has been proposed to be the carrier of the emission bands of certain astronomical objects like protoplanetary nebulae (PPNe) and the so-called unidentified infrared bands (UIBs), has been radiolyzed with γ-radiation to a total dose of 1 MGy. The stability of DAE toward radiation was assessed by FT-IR and electronic spectroscopy. The gases produced during radiolysis have been identified by GC. They were essentially H2 and CH4. A certain degree of crosslinking has been verified on the radiation-processed material by measuring the hexane insoluble fraction of DAE, which increased dramatically after the radiation treatment. Further analyses were conducted using high performance liquid chromatography (HPLC) on the radiation processed sample in comparison to the pristine sample.
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References
F. Cataldo, Y. Keheyan, D. Heymann, Intern. J. Astrobiol., 1 (2002) 79.
F. Cataldo, Y. Keheyan, D. Heymann, Proc. 2nd European Workshop on Exo/Astrobiology Graz, Austria, 16-19 September, 2002 (ESA SP-518, November 2002), p. 439.
F. Cataldo, Y. Keheyan, D. Heymann, Orig. Life Evol. Biosphere, to be published.
O. Guillois, G. Ledoux, I. Nenner, R. Papoular, C. Reynaud, Solid Interstellar Matter: The ISO Revolution, L. D. Hendrecourt, C. Joblin, A. Jones (Eds), Les Houches No. 11. EDP Sciences, Les Ulis, France, 1999, p. 103.
C. Reynaud, O. Guillois, N. Herlin-Boime, J. N. Rouzaud, A. Galvez, C. Clinard, E. Balanzat, J. M. Ramillon, Spectrochim. Acta, A57 (2001) 797.
R. Greeley, R. Batson, The Compact NASA Atlas of the Solar System, Cambridge University Press, Cambridge, UK, 2001, Appendix B.
P. Ehrenfreund, W. Irvine, L. Becker, J. Blank, J. R. Brucato, L. Colangeli, S. Derenne, D. Despois, A. Dutrey, H. Fraaije, A. Lazcano, T. Owen, F. Robert, Rep. Progr. Phys., 65 (2002) 1427.
D. Sears, J. N. Grossman (Eds), Proc. 64th Annual Meeting of Meteoritical Society, Meteoritics and Planetary Science, 36 (2001) A1.
V. K. Milinchuk, V. I. Tupikov, Organic Radiation Chemistry Handbook, Wiley, New York, 1989, p. 81 and p. 127.
D. Lin-Vien, N. B. Colthup, W. G. Fateley, J. G. Grasselli, The Handbook of Infrared and Raman Characteristic Frequencies of Organic Molecules, Academic Press, San Diego, 1991, p. 98.
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Cataldo, F., Keheyan, Y. & Baccaro, S. Gamma radiolysis of a heavy petroleum fraction. Journal of Radioanalytical and Nuclear Chemistry 258, 537–541 (2003). https://doi.org/10.1023/B:JRNC.0000011748.79673.e4
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DOI: https://doi.org/10.1023/B:JRNC.0000011748.79673.e4