Differentiation of plastic with laser induced breakdown spectroscopy

Kai Liu, Qian Qian Wang*, Hua Zhao, Yin Long Xiao

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

14 Citations (Scopus)

Abstract

The present article investigated the laser induced breakdown spectroscopy for a wide range of plastic (HDPE, LDPE, PET, NYLON) with the ultraviolet (UV) excitation wavelength. Compared with the National Institute of Standards and Technology atomic spectroscopy database line data, the author analyzed the detailed spectral atomic lines of the dominated elements. With the help of principal component analysis in the Chemometrics, the identification model was constructed under the method of cross-validation. Besides, all kinds of potential influence were analyzed for the detailed model. The result showed us vividly that the laser induced breakdown spectroscopy combined with the principal component analysis had the capacity to discriminate different plastic materials. It gave us a new method for model building and material discrimination. These results can be useful for further research on laser induced breakdown spectroscopy for the differentiation of different materials.

Original languageEnglish
Pages (from-to)1171-1174
Number of pages4
JournalGuang Pu Xue Yu Guang Pu Fen Xi/Spectroscopy and Spectral Analysis
Volume31
Issue number5
DOIs
Publication statusPublished - May 2011

Keywords

  • Differentiation
  • Laser induced breakdown spectroscopy (LIBS)
  • Plastic
  • Principal component analysis (PCA)

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