The Plasma Spectroscopic Study of Dergaon Meteorite, India
| Autor: | Jayanta Kumar Pati, Christian G. Parigger, Kalpana Duorah, Balen Bhagabaty, Abhishek K. Rai, Sonali Dubey, Awadhesh Kumar Rai, A. C. Mazumdar |
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| Rok vydání: | 2020 |
| Předmět: |
Materials science
010504 meteorology & atmospheric sciences atomic spectroscopy Analytical chemistry India Pharmaceutical Science Atomic spectroscopy 010502 geochemistry & geophysics 01 natural sciences Article Analytical Chemistry lcsh:QD241-441 lcsh:Organic chemistry Chondrite Drug Discovery Humans Physical and Theoretical Chemistry Spectroscopy 0105 earth and related environmental sciences planetary geochemistry Lasers Spectrum Analysis Organic Chemistry Atomic emission spectroscopy Meteoroids Dergaon meteorite calibration-free laser-induced breakdown spectroscopy Meteorite Chemistry (miscellaneous) Asteroid Elemental analysis molecular spectroscopy Molecular Medicine Solar System Earth (classical element) |
| Zdroj: | Molecules Molecules, Vol 25, Iss 4, p 984 (2020) Volume 25 Issue 4 |
| ISSN: | 1420-3049 |
| DOI: | 10.3390/molecules25040984 |
| Popis: | Meteorites are the recoverable portions of asteroids that reach the surface of the Earth. Meteorites are rare extraterrestrial objects studied extensively to improve our understanding of planetary evolution. In this work, we used calibration-free laser-induced breakdown spectroscopy (CF-LIBS) to evaluate the quantitative elemental and molecular analyses of the Dergaon meteorite, a H 4-5 chondrite fall sample from Assam, India. Spectral signatures of H, N, O, Na, Mg, Al, Si, P, K, Ca, Ti, Cr, Mn, Fe, Co, Ni, andIrweredetected. Along with the atomic emission, this work reports the molecular emission from FeO molecules. The concentration of the measured elements obtained using CF-LIBS is in close agreement with earlier reports. The elements H, N, and O and their concentrations are estimated by using CF-LIBS for the first time. This study applies laser spectroscopy to establish the presence of Ni, Cr, Co, and Ir in meteorites. The elemental analysis forms the basis for the establishment of the potential molecular composition of the Dergaon meteorite. Moreover, the elemental analysis approach bodes well for in-situ analyses of extraterrestrial objects including applications in planetary rover missions. |
| Databáze: | OpenAIRE |
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