Scientific Results

A review of the current analytical approaches for evaluating, compensating
and exploiting self-absorption in Laser Induced Breakdown Spectroscopy

Year: 2020

Authors: Rezaei F., Cristoforetti G., Tognoni E., Legnaioli S., Palleschi V., Safi A.

Autors Affiliation: 1 Department of Physics, K. N. Toosi University of Technology, 15875-4416 Tehran, Iran
2 CNR-INO, Research Area of National Research Council, Via G. Moruzzi 1, Pisa, Italy
3 CNR-ICCOM, Research Area of National Research Council, Via G. Moruzzi, 1, Pisa, Italy
4 Laser and Plasma Research Institute, Shahid Beheshti University, G. C., Evin, Tehran, Iran

Abstract: In this paper a review of different approaches for handling the self-absorption effect in Laser-Induced Breakdown
Spectroscopy (LIBS) applications is presented. From an analytical point of view, self-absorption is a major issue
affecting the accuracy of LIBS quantitative analysis. Self-absorption impacts emission line profiles and intensities,
resulting in non-linear calibration curves and influencing the estimation of the sample composition.
The main purpose of this work is presenting a summary of the experimental parameters giving raise to selfabsorption
and a thorough study of the different strategies for its estimation, compensation and exploitation in
order to improve the analytical accuracy of the LIBS technique.

Journal/Review:

Volume: 169      Pages from: 105878-1  to: 105878-25

KeyWords: LIBS, Self-absorption, Spectroscopy, Quantitative analysis
DOI: 10.1016/j.sab.2020.105878

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