Dear sir/madam,
Can you suggest which food component or biopolymer gives peak at 2000 wavenumber in Raman spectroscopy?
Thank you in advance,
Information is very scarce, since compounds usually have several peaks. By searching for pictures, i managed to find only an artifact with this wavenumber. The nature of the artifact is unfortunately not disclosed.
https://physicsopenlab.org/2022/01/11/raman-spectroscopy-of-organic-and-inorganic-molecules/
Divyang Solanki
Unfortunately, the articles search was unsuccessful. But I have found that artifacts can be caused by luminescence of sample.
Divyang Solanki
Check if your samples luminesce when excited by other light sources. I am also attaching an article that says: "Laser-induced photoluminescence of REE and Mn +2, which is obtained as an analytical artifact in the Raman spectra, has been observed in most cases with significant spectral intensity. The luminescence emission of Mn 2+, Sm3+, Eu3+, Pr3+, Er3+ in the spectra of the apatite-containing samples obtained with 532 nm excitation can be attributed both to apatite and to other mineral phases with a low concentration which contain these elemental ions" https://www.sciencedirect.com/science/article/abs/pii/S1386142520313512
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