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 complex dynamic systems, expanding at supersonic velocities and undergoing a transition between different plasma regimes. If the Local Thermodynamic Equilibrium (LTE) condition is valid for such plasmas, several analytical methods can be employed and fast quantitative analyses can be performed on a variety of samples. In the present paper, a discussion about LTE is carried out and an innovative application to the analysis of the alexandrite gemstone is presented. In addition, a study about the influence of plasma parameters on the performance of LTE-based methods is reported for bronze and brass targets.

Autore Pugliese

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  • DE GIACOMO A.

Titolo volume/Rivista

Non Disponibile

Anno di pubblicazione

2012

ISSN

0301-0104

ISBN

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Numero di citazioni Wos

22

Ultimo Aggiornamento Citazioni

Non Disponibile

Numero di citazioni Scopus

28

Ultimo Aggiornamento Citazioni

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Settori ERC

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Codici ASJC

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