Journal
TRAC-TRENDS IN ANALYTICAL CHEMISTRY
Volume 152, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.trac.2022.116618
Keywords
Calibration-free laser-induced breakdown; spectroscopy; Quantitative analysis; Local thermodynamic equilibrium
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Funding
- National Natural Science Foundation of China [62075069]
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Calibration-free LIBS (CF-LIBS) is an important element quantitative analysis method without standards, with advantages such as real-time, in-situ, on-site, single-point, and multi-elemental analysis. This review summarizes the development of CF-LIBS and discusses modified methods, variants, and applications in various fields.
As an important branch of laser-induced breakdown spectroscopy (LIBS), calibration-free LIBS (CF-LIBS) is a famous element quantitative analysis method without standards. This method has many advantages such as real-time, in-situ, on-site, single-point, and multi-elemental analysis, with excellent potential for geology, archaeology, industrial and environmental monitoring, and biomedicine. In this review, we summarized the development of CF-LIBS. It covered a brief description of the basic theory of CF-LIBS, several modified methods and variants, proposed to overcome the non-stoichiometric ablation, selfabsorption effect, and high algorithmic complexity. Furthermore, the applications of CF-LIBS in a variety of fields were reviewed. Finally, the existing problems of CF-LIBS and its potential were discussed.(c) 2022 Elsevier B.V. All rights reserved.
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