Self-absorption correction method for one-point calibration laser-induced breakdown spectroscopy

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

4 Scopus Citations
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Author(s)

  • Zhenlin HU
  • Junfei NIE
  • Zhiyong OUYANG
  • Deng ZHANG
  • Yanwu CHU
  • Lianbo GUO

Related Research Unit(s)

Detail(s)

Original languageEnglish
Pages (from-to)1-4
Journal / PublicationOptics Letters
Volume48
Issue number1
Online published15 Dec 2022
Publication statusPublished - 1 Jan 2023

Abstract

As an important variant of calibration-free laser-induced breakdown spectroscopy (CF-LIBS), one-point calibration LIBS (OPC-LIBS) corrects the Boltzmann plot of the unknown sample by using one known sample and obtains higher quantitative accuracy than CF-LIBS. However, the self-absorption effect restricts its accuracy. In this work, a new self-absorption correction (SAC) method for OPC-LIBS is proposed to solve this problem. This method uses an algorithm to correct the self-absorption and does not require the calculation of the self-absorption coefficient. To verify the effectiveness of this SAC method, Ti, V, and Al elements in two titanium alloys were determined by classical OPC-LIBS and OPC-LIBS with SAC. The average relative errors (AREs) of all elements in the two samples were decreased from 8.78% and 9.28% to 8.07% and 7.56%, respectively. The results demonstrated the effectiveness of this SAC method for OPC-LIBS.

Citation Format(s)

Self-absorption correction method for one-point calibration laser-induced breakdown spectroscopy. / HU, Zhenlin; NIE, Junfei; OUYANG, Zhiyong et al.
In: Optics Letters, Vol. 48, No. 1, 01.01.2023, p. 1-4.

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review