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

被引：45
作者：
De Giacomo, A. [1 ,2 ]
Dell'Aglio, M. [1 ]
Gaudiuso, R. [1 ]
Santagata, A. [3 ]
Senesi, G. S. [1 ]
Rossi, M. [4 ]
Ghiara, M. R. [4 ]
Capitelli, F. [5 ]
De Pascale, O. [1 ]
机构：
[1] CNR, Inst Inorgan Methodol & Plasmas, UOS Bari, I-70126 Bari, Italy
[2] Univ Bari, Dept Chem, I-70126 Bari, Italy
[3] CNR, Inst Inorgan Methodol & Plasmas, UOS Potenza, I-85050 Tito, PZ, Italy
[4] Univ Naples Federico II, Dept Earth Sci, I-80134 Naples, Italy
[5] CNR, Inst Crystallog, I-00015 Monterotondo, Roma, Italy
来源：
CHEMICAL PHYSICS | 2012年 / 398卷
关键词：
Laser Induced Breakdown Spectroscopy; Beryllium; Alexandrite; Copper-based alloys; LTE; INDUCED PLASMA SPECTROSCOPY; LIBS; PULSE; NANOSECOND; SAMPLES; BRASS; PLUME;
D O I：
10.1016/j.chemphys.2011.05.027
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
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. (C) 2011 Elsevier B.V. All rights reserved.
引用
收藏
页码：233 / 238
页数：6
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