Evaluation of the self-absorption reduction of minor elements in laser-induced breakdown spectroscopy assisted with laser-stimulated absorption

2017 ◽  
Vol 32 (11) ◽  
pp. 2189-2193 ◽  
Author(s):  
Jiaming Li ◽  
Yun Tang ◽  
Zhongqi Hao ◽  
Nan Zhao ◽  
Xinyan Yang ◽  
...  
Keyword(s):  
Quantitative Evaluation ◽  
The Self ◽  
Laser Induced Breakdown Spectroscopy ◽  
Breakdown Spectroscopy ◽  
Minor Elements ◽  
Laser Induced Breakdown

This paper describes the quantitative evaluation of the self-absorption reduction of minor elements in laser-induced breakdown spectroscopy assisted with laser-stimulated absorption.

scholarly journals Correction: Evaluation of the self-absorption reduction of minor elements in laser-induced breakdown spectroscopy assisted with laser-stimulated absorption

2020 ◽  
Vol 35 (7) ◽  
pp. 1494-1494
Author(s):  
Jiaming Li ◽  
Yun Tang ◽  
Zhongqi Hao ◽  
Nan Zhao ◽  
Xinyan Yang ◽  
...  
Keyword(s):  
The Self ◽  
Laser Induced Breakdown Spectroscopy ◽  
Breakdown Spectroscopy ◽  
Minor Elements ◽  
Laser Induced Breakdown

Correction for ‘Evaluation of the self-absorption reduction of minor elements in laser-induced breakdown spectroscopy assisted with laser-stimulated absorption’ by Jiaming Li et al., J. Anal. At. Spectrom., 2017, 32, 2189–2193, DOI: 10.1039/C7JA00199A.

scholarly journals Correction: Investigation of the self-absorption effect using spatially resolved laser-induced breakdown spectroscopy

2020 ◽  
Vol 35 (7) ◽  
pp. 1495-1495
Author(s):  
Rongxing Yi ◽  
Lianbo Guo ◽  
Changmao Li ◽  
Xinyan Yang ◽  
Jiaming Li ◽  
...  
Keyword(s):  
The Self ◽  
Laser Induced Breakdown Spectroscopy ◽  
Absorption Effect ◽  
Breakdown Spectroscopy ◽  
Spatially Resolved ◽  
Laser Induced Breakdown

Correction for ‘Investigation of the self-absorption effect using spatially resolved laser-induced breakdown spectroscopy’ by Rongxing Yi et al., J. Anal. At. Spectrom., 2016, 31, 961–967, DOI: 10.1039/C5JA00500K.

Investigation of the self-absorption effect using spatially resolved laser-induced breakdown spectroscopy

2016 ◽  
Vol 31 (4) ◽  
pp. 961-967 ◽  
Author(s):  
Rongxing Yi ◽  
Lianbo Guo ◽  
Changmao Li ◽  
Xinyan Yang ◽  
Jiaming Li ◽  
...  
Keyword(s):  
The Self ◽  
Laser Induced Breakdown Spectroscopy ◽  
Absorption Effect ◽  
Breakdown Spectroscopy ◽  
Spatially Resolved ◽  
Laser Induced Breakdown

This study discovered the distributional difference of self-absorption effect in laser-induced breakdown spectroscopy, and investigated the method to reduce the self-absorption effect.

Investigation of the multi-elemental self-absorption mechanism and experimental optimization in laser-induced breakdown spectroscopy

2020 ◽  
Vol 35 (5) ◽  
pp. 912-926
Author(s):  
Song Cai ◽  
Yun Tang ◽  
Fan Wang ◽  
Yonggang Xiong ◽  
Xiao Sun ◽  
...  
Keyword(s):  
The Self ◽  
Laser Induced Breakdown Spectroscopy ◽  
Absorption Mechanism ◽  
Absorption Effect ◽  
Experimental Optimization ◽  
Breakdown Spectroscopy ◽  
Laser Induced Breakdown

The self-absorption effect reduces the accuracy of element measurements in laser-induced breakdown spectroscopy (LIBS) experiments.

A method for improving the accuracy of calibration-free laser-induced breakdown spectroscopy (CF-LIBS) using determined plasma temperature by genetic algorithm (GA)

2015 ◽  
Vol 30 (6) ◽  
pp. 1336-1344 ◽  
Author(s):  
Juan Dong ◽  
Long Liang ◽  
Jiao Wei ◽  
Hongsheng Tang ◽  
Tianlong Zhang ◽  
...  
Keyword(s):  
Standard Sample ◽  
Plasma Temperature ◽  
The Self ◽  
Laser Induced Breakdown Spectroscopy ◽  
Internal Reference ◽  
Absorption Effect ◽  
Breakdown Spectroscopy ◽  
External Standard ◽  
Laser Induced Breakdown ◽  
Calibration Free

An internal reference-external standard with iteration correction (IRESIC) method is proposed to correct for the self-absorption effect and plasma temperature in CF-LIBS based on an internal reference line and one standard sample.

scholarly journals Simple Defocus Laser Irradiation to Suppress Self-Absorption in Laser-Induced Breakdown Spectroscopy (LIBS)

2021 ◽  
Author(s):  
Alion Mangasi Marpaung ◽  
Edward Harefa ◽  
Marincan Pardede ◽  
Indra Karnadi ◽  
Rinda Hedwig ◽  
...  
Keyword(s):  
Laser Irradiation ◽  
Laser Plasma ◽  
Laser Energy ◽  
The Self ◽  
Laser Induced Breakdown Spectroscopy ◽  
High Concentration ◽  
Focus Laser ◽  
Breakdown Spectroscopy ◽  
Laser Induced Breakdown ◽  
Tight Focus

Abstract This study introduces a novel and extremely simple way for suppressing the self-absorption effect in laser-induced breakdown spectroscopy (LIBS) by utilizing a defocusing laser irradiation technique. It is claimed that defocusing laser irradiation produces more uniform laser plasma due to lower fluence than tight focus laser irradiation, hence greatly lowering the effect of self-absorption in the laser plasma. KCl and NaCl pellet samples were used to demonstrate this achievement. When the defocus position is adjusted to – 6 mm for KCl and NaCl samples, the self-reversal emission lines K I 766.4 nm, K I 769.9 nm, Na I 588.9 nm, and Na I 589.5 nm vanish. Meanwhile, the FWHM values of K I 766.4 and K I 769.9 nm are 0.29 nm and 0.23 nm, respectively, during -6 mm defocus laser irradiation, as opposed to 1.24 nm and 0.86 nm, under tight focus laser irradiation. Additionally, this work demonstrates that when the laser energy is changed in between 10 to 50 mJ, no self-reversal emission occurs when -6 mm defocus laser irradiation is applied. Finally, a linear calibration curve is generated using KCl at a high concentration ranging between K concentration from 16.6–29%. This simple change of defocus laser irradiation will undoubtedly contribute to the suppression of the self-absorption phenomenon, which disrupts LIBS analytical results.

scholarly journals Quantification of Minor Chemical Elements in Particulate Matter Collected from In-Use Diesel Engine Passenger Vehicles by Laser-Induced Breakdown Spectroscopy

Energies ◽  
2020 ◽  
Vol 13 (22) ◽  
pp. 6113
Author(s):  
Richard Viskup ◽  
Christoph Wolf ◽  
Werner Baumgartner
Keyword(s):  
Particulate Matter ◽  
Diesel Engine ◽  
Chemical Elements ◽  
Laser Induced Breakdown Spectroscopy ◽  
Analytical Technique ◽  
Breakdown Spectroscopy ◽  
Minor Elements ◽  
Passenger Vehicles ◽  
Internal Calibration ◽  
Laser Induced Breakdown

This research qualitatively and quantitatively characterises the minor chemical elements in diesel particulate matter (DPM). DPM was extracted from in-use diesel engine passenger vehicles of diverse types and models from major brand car producers in Europe. We analysed particulate matter extracted from the exhaust manifold part from passenger vehicles that are used in daily life environment. To qualitatively and quantitatively characterise the DPM, we employed the high-resolution Laser-Induced Breakdown Spectroscopy analytical technique (LIBS). Qualitative spectrochemical LIBS analyses confirmed the presence of minor chemical elements—silicon, nickel, titan, potassium, strontium, and molybdenum in DPM. For quantification of the LIBS signal, the calibration functions were constructed from internal calibration standards. Different concentrations of detected minor elements Si, Ni, Ti, K, Sr, and Mo were measured with respect to the type of complex particulate matter.

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