A Very Simple Method for the Discrimination against Luminescence Background in Computer-controlled Raman Spectrometers

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Abstract:

Often the laser lines commonly used for Raman spectroscopy also excite strong broad luminescence features which partly or completely obscure the Raman spectrum of interest. The spectrum of uranyl nitrate (Hopkin and Williams 98% min) reproduced in Fig. 1 provides an excellent example of this problem. In the spectrum, excited by the green 514.5 nm Ar+ laser line, the strong and sharp 869 cm−1 band is still quite prominent, whereas the assignment of the small feature at 756 cm−1 as a vibrational Raman transition would be considered speculative at best.

Keywords: Computer applications; Fluorescence; Raman spectroscopy; Techniques, spectroscopic

Document Type: Short Communication

DOI: http://dx.doi.org/10.1366/0003702824638728

Affiliations: Department of Inorganic and Analytical Chemistry and Electronics Laboratory, Institute of Chemistry, The Hebrew University of Jerusalem, Jerusalem, Israel 91904

Publication date: March 1, 1982

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