A Laser Induced Breakdown Spectroscopy application based on Local Thermodynamic Equilibrium assumption for the elemental analysis of alexandrite gemstone and copper-based alloys

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Abstract

Laser Induced Breakdown Spectroscopy (LIBS) is an appealing technique to study laser-induced plasmas(LIPs), both from the basic diagnostics point of view and for analytical applications. LIPs are complexdynamic systems, expanding at supersonic velocities and undergoing a transition between differentplasma regimes. If the Local Thermodynamic Equilibrium (LTE) condition is valid for such plasmas, severalanalytical methods can be employed and fast quantitative analyses can be performed on a variety ofsamples. In the present paper, a discussion about LTE is carried out and an innovative application to theanalysis of the alexandrite gemstone is presented. In addition, a study about the influence of plasmaparameters on the performance of LTE-based methods is reported for bronze and brass targets.

Autore Pugliese

Tutti gli autori

  • A. De Giacomo ; M. Dell'Aglio ; R. Gaudiuso ; A. Santagata ; G.S. Senesi ; M. Rossi ; M.R. Ghiara ;F. Capitelli ; O. De Pascale

Titolo volume/Rivista

Chemical physics

Anno di pubblicazione

2012

ISSN

0301-0104

ISBN

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Numero di citazioni Wos

Nessuna citazione

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Numero di citazioni Scopus

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Settori ERC

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Codici ASJC

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