The Use of Raman Spectroscopy for the Rapid Analysis of Chemical Compounds
| Autor: | Ig. S. Golyak, Il. S. Golyak, A. A. Esakov, S. E. Tabalin, I. B. Vintaykin, Andrey N. Morozov |
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| Rok vydání: | 2020 |
| Předmět: |
Materials science
010304 chemical physics Spectrometer Analytical chemistry Michelson interferometer Photodetector 010402 general chemistry Laser 01 natural sciences 0104 chemical sciences law.invention Wavelength symbols.namesake law 0103 physical sciences symbols Physical and Theoretical Chemistry Spectral resolution Raman spectroscopy Excitation |
| Zdroj: | Russian Journal of Physical Chemistry B. 14:752-759 |
| ISSN: | 1990-7923 1990-7931 |
| Popis: | The use of Raman spectroscopy for the rapid analysis of chemical substances is considered. To reduce the time of the analysis, it is proposed to use a Fourier-transform spectrometer based on a static Michelson interferometer, in which a spatial scan of the interferogram occurs. Two schemes of implementation of a model of a static Fourier-transform spectrometer are represented: with a matrix photodetector device (PD) that makes it possible to obtain better spectral resolution and with a linear PD, which is more sensitive. The Raman spectra are recorded in the spectral range of 800 to 1050 nm, which makes it possible to perform the analysis in the daytime. A laser with wavelength λ = 785 nm and power of 1.5 W is used as the source of excitation radiation. The interferograms obtained on both models of Fourier-transform spectrometers are presented; the Raman spectra of the following test substances are restored: 1,4-bis(5-phenyl-2-oxazolyl)benzene (POPOP, C24H16N2O2), stilbene (C14H12), chloroform (CHCl3), and ethanol (C2H5OH), and their correlation matrices are presented. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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