Fast quantitative elemental mapping of highly inhomogeneous materials by micro-Laser-Induced Breakdown Spectroscopy

Stefano Pagnotta, Marco Lezzerini, Beatrice Campanella, Gianni Gallello, Emanuela Grifoni, Stefano Legnaioli, Giulia Lorenzetti, Francesco Poggialini, Simona Raneri, Ali Safi, Vincenzo Palleschi

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In this work, a fast method for obtaining a quantitative elemental mapping of highly inhomogeneous samples by µ-LIBS maps is proposed. The method, transportable and cheap, allows the analysis of large maps through the use of a Self-Organizing Map clustering method coupled to Calibration-Free LIBS for quantification of cluster prototypes. The method proposed has been verified on heterogeneous materials such historical lime mortars but it can be easily applied to a larger class of inhomogeneous materials for very different applications (modern building materials, biological samples, industrial materials, etc.).
Original languageEnglish
Pages (from-to)9–15
Number of pages7
JournalSpectrochimica Acta Part B: Atomic Spectroscopy
Issue numberAugust 2018
Publication statusPublished - 4 May 2018

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