Comparative infrared and Raman spectroscopy of compounds in high-pressure media

Jeffrey B. Morris; Kevin L. McNesby

doi:10.1117/12.166809

31 January 1994 Comparative infrared and Raman spectroscopy of compounds in high-pressure media

Jeffrey B. Morris, Kevin L. McNesby

Proceedings Volume 2089, 9th International Conference on Fourier Transform Spectroscopy; (1994) https://doi.org/10.1117/12.166809
Event: Fourier Transform Spectroscopy: Ninth International Conference, 1993, Calgary, Canada

Abstract

The techniques of Fourier transform infrared spectroscopy (FT-IR) and Fourier transform Raman spectroscopy (FT-R) are compared for use in high pressure environments such as those encountered when using supercritical fluid solvents. FT-IR spectra in the 1000 to 3000 cm^-1 region show severe pressure broadening of high-pressure molecular solvents, which eliminates much of the useful spectral range when using this technique. These solvent interferences are not a problem with FT-R at pressures as high as 35 MPa. Spectra of naphthalene in liquid carbon dioxide are used to compare these two spectroscopic techniques.

Citation Download Citation

Jeffrey B. Morris and Kevin L. McNesby "Comparative infrared and Raman spectroscopy of compounds in high-pressure media", Proc. SPIE 2089, 9th International Conference on Fourier Transform Spectroscopy, (31 January 1994); https://doi.org/10.1117/12.166809

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