Issue 4, 2016

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

Abstract

The self-absorption effect will seriously influence the accuracy of quantitative analyses using laser-induced breakdown spectroscopy (LIBS). To reduce the self-absorption effect, elements Na and K (major elements) and Pb and Cu (minor elements) in soil plasmas have been studied by spatially resolved LIBS (SRLIBS). The 2-dimensional distributions of line intensities and self-absorption coefficients of lines in the plasmas were investigated and the influence parameters of the self-absorption effect were also studied. Results have shown that the self-absorption effect could be reduced greatly and the accuracy of quantitative LIBS could be improved obviously by selecting the collecting zones of the plasmas carefully. Meanwhile, a high laser energy and a short delay time could be useful to expand the region which is influenced slightly by the self-absorption effect.

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

Associated articles

Article information

Article type
Paper
Submitted
30 Dec 2015
Accepted
15 Feb 2016
First published
15 Feb 2016

J. Anal. At. Spectrom., 2016,31, 961-967

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

R. Yi, L. Guo, C. Li, X. Yang, J. Li, X. Li, X. Zeng and Y. Lu, J. Anal. At. Spectrom., 2016, 31, 961 DOI: 10.1039/C5JA00500K

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