Mapping applications in laser-induced breakdown spectroscopy

Qi Meng Chen, Min Du, Zhong Qi Hao, Xiao Heng Zou, Jia Ming Li, Rong Xing Yi, Xiang You Li, Yong Feng Lu, Xiao Yan Zeng

Research output: Contribution to journalArticle

4 Scopus citations

Abstract

LIBS mapping was used to analyze and detect the elemental distribution of iron ore surface with self-developed software and 532 nm Nd:YAG laser. Firstly, in order to illustrate the relationship between element content and spectral intensity, the calibration curve was established by scanning the surface of standard sample. Then, a self-made sample was homogeneously divided into three parts that was pressed by three different standard iron ore powders. For the purpose of validating the mapping technology, a two-dimensional concentration distribution profile was generated after scanning the sample surface which was compared with surface morphology phase of the sample. Finally, with the resolution of 100 microns, the surface scanning analysis of the natural iron ore within the scope of 14 mm×11 mm was implemented. With this basis, the distribution profile of the elements Ca, Al, Ti and Mn were obtained, and the analysis results were compared with the surface morphology phase of the natural iron ore. The results showed that LIBS mapping technology could be used to achieve the qualitative analysis of component gradient distribution of the heterogeneous sample surface.

Original languageEnglish (US)
Pages (from-to)1473-1477
Number of pages5
JournalGuang Pu Xue Yu Guang Pu Fen Xi/Spectroscopy and Spectral Analysis
Volume36
Issue number5
DOIs
StatePublished - May 1 2016

Keywords

  • Component analysis
  • Iron ore
  • Laser-induced breakdown spectroscopy
  • Mapping

ASJC Scopus subject areas

  • Instrumentation
  • Spectroscopy

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