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Three-dimensional compositional mapping using double-pulse micro-laser-induced breakdown spectroscopy technique.

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Title: Three-dimensional compositional mapping using double-pulse micro-laser-induced breakdown spectroscopy technique.
Authors: Grassi, R.1, Grifoni, E.2, Gufoni, S.1, Legnaioli, S.2,3, Lorenzetti, G.2, Macro, N.2, Menichetti, L.4, Pagnotta, S.2, Poggialini, F.2, Schiavo, C.2, Palleschi, V.2,3 vincenzo.palleschi@cnr.it
Source: Spectrochimica Acta Part B. Jan2017, Vol. 127, p1-6. 6p.
Subjects: Laser-induced breakdown spectroscopy, Trace elements, Three-dimensional imaging, Isotopes, Laser spectroscopy
Abstract: In this communication, we present the development of the first double-pulse micro-LIBS (DP-μLIBS) instrument for three-dimensional compositional mapping of materials. The system allows for high-resolution three-dimensional scanning of materials; its advantages with respect to conventional single-pulse micro-LIBS systems are described and discussed. As a test example, we analyzed three Euro coins to show the performances of the system on homogeneous samples (20 Eurocents), heterogeneous samples (1 Euro) and layered samples (5 Eurocents). DP-μLIBS cannot provide isotopic information and has, typically, limits of detection for the elements of interest much higher with respect to Laser Ablation-Inductively Coupled Plasma-Mass Spectrometry (LA-ICP-MS). However, when the isotopic information and the extreme sensitivity to trace elements is not be necessary, the results obtained show that DP-μLIBS can be a viable alternative to LA-ICP-MS for the acquisition of high resolution three-dimensional compositional maps. [ABSTRACT FROM AUTHOR]
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Database: Engineering Source
Description
Abstract:In this communication, we present the development of the first double-pulse micro-LIBS (DP-μLIBS) instrument for three-dimensional compositional mapping of materials. The system allows for high-resolution three-dimensional scanning of materials; its advantages with respect to conventional single-pulse micro-LIBS systems are described and discussed. As a test example, we analyzed three Euro coins to show the performances of the system on homogeneous samples (20 Eurocents), heterogeneous samples (1 Euro) and layered samples (5 Eurocents). DP-μLIBS cannot provide isotopic information and has, typically, limits of detection for the elements of interest much higher with respect to Laser Ablation-Inductively Coupled Plasma-Mass Spectrometry (LA-ICP-MS). However, when the isotopic information and the extreme sensitivity to trace elements is not be necessary, the results obtained show that DP-μLIBS can be a viable alternative to LA-ICP-MS for the acquisition of high resolution three-dimensional compositional maps. [ABSTRACT FROM AUTHOR]
ISSN:05848547
DOI:10.1016/j.sab.2016.11.004