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Laser‐induced breakdown spectroscopy applied to the rapid identification of different types of polyethylene used for toy manufacturing
Author(s) -
Costa Vinicius Câmara,
Pereira Fabíola Manhas Verbi
Publication year - 2020
Publication title -
journal of chemometrics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.47
H-Index - 92
eISSN - 1099-128X
pISSN - 0886-9383
DOI - 10.1002/cem.3248
Subject(s) - high density polyethylene , polyethylene , low density polyethylene , laser induced breakdown spectroscopy , materials science , principal component analysis , identification (biology) , spectroscopy , composite material , analytical chemistry (journal) , laser , chemistry , chromatography , computer science , optics , artificial intelligence , physics , botany , quantum mechanics , biology
The identification of plastics is of great importance to recycling companies, as the littering of plastic wastes has rapidly increased because of the extensive use of plastics. To maintain the economics of recycling extremely large volumes of waste materials, rapid and accurate identification of these plastics is crucial. In this study, we demonstrate the efficacy of laser‐induced breakdown spectroscopy (LIBS) in the rapid identification of high‐density polyethylene (HDPE) and low‐density polyethylene (LDPE) used for toy manufacturing. For data analysis of the LIBS spectra, multivariate data analysis using principal component analysis (PCA) was utilized. The analyses of the data clearly showed that the elemental and molecular information obtained from LIBS is effective in the identification of three types of polyethylene. The proposed method was successfully applied and can be used as an alternative to the traditional methods used for analyses of plastics.