Determination of Anthracene Derivatives in Baltic Amber Using SERS
Anna Kundalevich,
Andrey Zyubin,
Karina Matveeva,
Ilia Samusev,
Ivan Lyatun
Affiliations
Anna Kundalevich
Research and Education Center “Fundamental and Applied Photonics. Nanophotonics”, Immanuel Kant Baltic Federal University, A. Nevskogo 14, 236016 Kaliningrad, Russia
Andrey Zyubin
Research and Education Center “Fundamental and Applied Photonics. Nanophotonics”, Immanuel Kant Baltic Federal University, A. Nevskogo 14, 236016 Kaliningrad, Russia
Karina Matveeva
Research and Education Center “Fundamental and Applied Photonics. Nanophotonics”, Immanuel Kant Baltic Federal University, A. Nevskogo 14, 236016 Kaliningrad, Russia
Ilia Samusev
Research and Education Center “Fundamental and Applied Photonics. Nanophotonics”, Immanuel Kant Baltic Federal University, A. Nevskogo 14, 236016 Kaliningrad, Russia
Ivan Lyatun
The International Research Center “X-ray Coherent Optics”, Immanuel Kant Baltic Federal University, A. Nevskogo 14, 236016 Kaliningrad, Russia
The article describes the results of Raman spectroscopy and SERS for the study of fluorescent components of Baltic amber via the extraction method. Using SERS, it was possible to confirm the presence of anthracene derivatives in amber: tetracene and benzanthracene. It has been shown that SERS methods are effective for the detection of aromatic compounds; they increase the registered Raman signal and make it possible to identify peaks characteristic of the compounds under study. By combining experimental methods with DFT simulations, anthracene derivatives were modeled and confirmed to be present in the structure of Baltic amber. A combination of the proposed methods can be used to distinguish between different types of amber and isolate the necessary amber components. The obtained results are promising for compiling spectral maps of ambers for their possible classification by their place of origin.
