Spatio-temporal distribution of atomic and molecular excited species in Laser -Induced Breakdown Spectroscopy: Potential implications on the determination of halogens

被引：16
|
作者：
Fernandez-Menendez, Luis Javier [1 ]
Mendez-Lopez, Cristina [1 ]
Alvarez-Llamas, Cesar [2 ]
Gonzalez-Gago, Cristina [1 ]
Pisonero, Jorge [1 ]
Bordel, Nerea [1 ]
机构：
[1] Univ Oviedo, Dept Phys, Federico Garcia Lorca 18, Oviedo 33007, Spain
[2] Univ Malaga, Dept Analyt Chem, UMA LASERLAB, Jimenez Fraud 4, Malaga 29071, Spain
来源：
SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY | 2020年 / 168卷
关键词：
Laser induced breakdown Spectrocopy (LIBS); Spatio-temporal emission distributions; Molecular spectra; CaF emission bands; Halogen determination; INDUCED PLASMA; LIBS; EMISSION; ABLATION; QUANTIFICATION; DIAGNOSTICS; CHLORINE; AIR; FLUORINE; PLUME;
D O I：
10.1016/j.sab.2020.105848
中图分类号：
O433 [光谱学];
学科分类号：
0703 ; 070302 ;
摘要：
A LIBS experimental set-up is designed and evaluated to obtain the spatio-temporal distribution of atomic and molecular emission signals after the ablation of samples with different amounts of Ca and F. This analysis revealed separated temporal and spatial regions that maximized the atomic and molecular emission signals, respectively. Therefore, these distributions are investigated to elucidate the origin of the CaF molecular excited species, and to evaluate the development of an optimized method for the measurement of CaF molecular signals, which are related to the concentration of F in the sample.
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页数：8
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