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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2017.8
- 수록면
- 402 - 411 (10page)
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Combined LIBS-Raman spectroscopy has been widely studied, due to its complementary capabilities asan elemental analyzer that can acquire signals of atoms, ions, and molecules. In this study, the classificationof polymorphs was performed by laser-induced breakdown spectroscopy (LIBS) to overcome the limitationin molecular analysis; the results were verified by Raman spectroscopy. LIBS signals of the CaCO<sub>3</sub>polymorphs calcite and aragonite, and CaSO4․ 2H2O (gypsum) and CaSO4 (anhydrite), were acquired usinga Nd:YAG laser (532 nm, 6 ns). While the molecular study was performed using Raman spectroscopy,LIBS could also provide sufficient key data for classifying samples containing different molecular densitiesand structures, using the peculiar signal ratio of 5s→4p for the orbital transition of two polymorphs thatcontain Ca. The basic principle was analyzed by electronic motion in plasma and electronic transition inatoms or ions. The key factors for the classification of polymorphs were the different electron quantitiesin the unit-cell volume of each sample, and the selection rule in electric-dipole transitions. The presentwork has extended the capabilities of LIBS in molecular analysis, as well as in atomic and ionic analysis.
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참고문헌 (32)
참고문헌 신청
N. Prieto-Taboada / 2014 / Raman spectra of the different phases in the CaSO4-H2O system / Anal. Chem 86(20):10131~10137
M. D. Dyar / 2013 / What lurks in the martian rocks and soil? investigations of sulfates, phosphates, and perchlorates. Mössbauer parameters of iron in sulfate minerals / Am. Mineral 98(11-12):1943~1965
K. Melessanaki / 2002 / The application of LIBS for the analysis of archaeological ceramic and metal artifacts / Appl. Surf. Sci 197:156~163
F. C. D. Lucia / 2003 / Laser-induced breakdown spectroscopy analysis of energetic materials / Appl. Opt 42(30):6148~6152
A. K. Knight / 2000 / Characterization of Laser-Induced Breakdown Spectroscopy(LIBS)for application to space exploration / Appl. Spectrosc 54(3):331~340
M. D. Dyar / 2013 / What lurks in the martian rocks and soil? investigations of sulfates, phosphates, and perchlorates. Mössbauer parameters of iron in sulfate minerals / Am. Mineral 98(11-12):1943~1965
K. Melessanaki / 2002 / The application of LIBS for the analysis of archaeological ceramic and metal artifacts / Appl. Surf. Sci 197:156~163
F. C. D. Lucia / 2003 / Laser-induced breakdown spectroscopy analysis of energetic materials / Appl. Opt 42(30):6148~6152
A. K. Knight / 2000 / Characterization of Laser-Induced Breakdown Spectroscopy(LIBS)for application to space exploration / Appl. Spectrosc 54(3):331~340
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