1 December 1989 Application Of An FT-Raman Accessory Interfaced To An FT-IR Spectrometer
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Proceedings Volume 1145, 7th Intl Conf on Fourier Transform Spectroscopy; (1989); doi: 10.1117/12.969584
Event: Seventh International Conference on Fourier and Computerized Infrared Spectroscopy, 1989, Fairfax, VA, United States
Abstract
Raman spectroscopy is currently the focus of renewed interest due to its increasingly straightforward incorporation of near-IR laser sources and FT techniques. Conventional Raman vibrational spectroscopy provides spectral information complimentary to that obtained by IR absorption methods, thus giving the user of both techniques a more complete spectral analysis. Additionally, FT-Raman also exploits the optical throughput and wavenumber accuracy that interferometric spectroscopy offers. Still another very significant advantage results from near-IR FT-Raman's ability to obtain useful Raman spectra from compounds that would normally yield only featureless fluorescence in visible laser Raman systems. This presentation will highlight advantages that result from the coupling of a near-IR FT-Raman module with an FT-IR system. Among these is the increased sampling capability that results from the complimentary nature of the two spectroscopies. For example, although it would be nearly impossible to obtain an IR spectrum of an aqueous solution sealed in a glass tube, such a sample can be studies in quite a straightforward manner by FT-Raman spectroscopy. Also, a broad optical range is easily studied since the Raman technique allows one to observe bands corresponding to Raman shifts in the range from 3500 cm-1 down to approximately 100 cm-1 in the same scan and there is no need to change optical components. Another advantage gained by such a combined IR/Raman configuration is the resulting capability to easily switch from one technique to the other. Not only can both IR and Raman spectra be obtained routinely, but since the same data system is used by both techniques, both IR and Raman files are collected and manipulated using the same software. Thus, routines such as spectral subtraction and deconvolution can readily be applied to either technique.
© (1989) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
R. Rubinovitz, A. Simon, "Application Of An FT-Raman Accessory Interfaced To An FT-IR Spectrometer", Proc. SPIE 1145, 7th Intl Conf on Fourier Transform Spectroscopy, (1 December 1989); doi: 10.1117/12.969584; https://doi.org/10.1117/12.969584
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KEYWORDS
Raman spectroscopy

Spectroscopy

Fourier transforms

FT-IR spectroscopy

Infrared spectroscopy

Absorption

Interferometry

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