We analyzed amber samples from the the Baltic region and Mexico, as well as imitation amber, in order to develop an analytical method allowing to discriminate between different samples causing little or no damage. We propose a two-step method that involves the use of Laser Induced Breakdown Spectroscopy (LIBS) to obtain spectra, and Discriminant Analysis to analyze the resulting data. We studied the damage caused to the samples using confocal optical microscopy.
Our results show that the use of LIBS with DA treatment for spectral analysis allows for accurate and rapid identification and discrimination of Mexican amber, Baltic amber, and false amber. The chemometrics techniques used in this study were found to be an effective and reliable tool for analyzing complex organic samples. Moreover, without any prior knowledge of the concentration of inorganic elements or other information about the samples, the proposed technique was able to accurately classify the samples based solely on the LIBS spectra. Overall, our results demonstrate the usefulness of the LIBS technique paired with multivariate analysis for the analysis and classification of amber samples
How to Cite:
Flores, T., et al. "ANALISIS DE MUESTRAS DE AMBAR POR LIBS Y METODOS QUIMIOMETRÍCOS." Revista Cubana de Física, vol. 40, no. 1, July 2023, pp. 27+. Gale Academic OneFile, link.gale.com/apps/doc/A762573373/AONE?u=anon~26db78b6&sid=googleScholar&xid=1e7c04ef. Accessed 29 Aug. 2024.
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