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Visualizing Molecular Species Within Inorganics: Raman Chemical Imaging of Minerals, Meteorites and Actinides

Published online by Cambridge University Press:  02 July 2020

Nicole J. Kline ,
Mark C. Sparrow  and
Patrick J. Treado
Nicole J. Kline
Affiliation:
Department of Chemistry, University of Pittsburgh, Pittsburgh, PA15260
Mark C. Sparrow
Affiliation:
Department of Chemistry, University of Pittsburgh, Pittsburgh, PA15260
Patrick J. Treado
Affiliation:
Department of Chemistry, University of Pittsburgh, Pittsburgh, PA15260
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Extract

Raman chemical imaging microscopy is a powerful technique for the characterization of a wide host of materials, including inorganic species. The technique makes use of a liquid crystal tunable filter (LCTF) imaging spectrometer that is integrated within an infinity-corrected optical microscope. The imaging system provides the performance of a dispersive Raman spectrometer at every pixel of the charge-coupled device (CCD) detector used to capture the Raman image.

We are currently applying Raman microscopy to the chemical imaging analysis of mineral composition and phase chemistry found in meteorites and terrestrial minerals. Determination of the chemical composition and structure of mineral components is often useful in developing an understanding of the petrologic process that formed the minerals, including those minerals that have been exposed to water. This is of particular interest in light of recent promising evidence of past life in Martian meteorites.

Type
Optical Microanalysis
Information
Microscopy and Microanalysis , Volume 3 , Issue S2: Proceedings: Microscopy & Microanalysis '97, Microscopy Society of America 55th Annual Meeting, Microbeam Analysis Society 31st Annual Meeting, Histochemical Society 48th Annual Meeting, Cleveland, Ohio, August 10-14, 1997 , August 1997 , pp. 859 - 860
Copyright
Copyright © Microscopy Society of America 1997

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References

1.Morris, H.R., Hoyt, C.C., Miller, P. and Treado, P.J., Appl. Spectrosc, 50 (1996) 805.10.1366/0003702963905655CrossRefGoogle Scholar
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3. The authors gratefully acknowledge the collaborative support of Alan, Treiman, Lunar and Planetary Institute, Alian, Wang, Washington University in Louis, St., and George, Havrilla, Los Alamos National Laboratory.Google Scholar