In this work, a fast method for obtaining a quantitative elemental mapping of highly inhomogeneous samples by mu-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 (modem building materials, biological samples, industrial materials, etc.). (C) 2018 Elsevier B.V. All rights reserved.
Fast quantitative elemental mapping of highly inhomogeneous materials by micro-Laser-Induced Breakdown Spectroscopy / Pagnotta, S.; Lezzerini, M.; Campanella, B.; Gallello, G.; Grifoni, E.; Legnaioli, S.; Lorenzetti, G.; Poggialini, F.; Raneri, S.; Safi, A.; Palleschi, V.. - In: SPECTROCHIMICA ACTA, PART B: ATOMIC SPECTROSCOPY. - ISSN 0584-8547. - ELETTRONICO. - 146:(2018), pp. 9-15. [10.1016/j.sab.2018.04.018]
Fast quantitative elemental mapping of highly inhomogeneous materials by micro-Laser-Induced Breakdown Spectroscopy
Raneri, S.;
2018
Abstract
In this work, a fast method for obtaining a quantitative elemental mapping of highly inhomogeneous samples by mu-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 (modem building materials, biological samples, industrial materials, etc.). (C) 2018 Elsevier B.V. All rights reserved.
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