Classification of Ceramic Tableware by Laser Induced Breakdown Spectroscopy and Chemometrics

Author(s)

Oreste, Eliezer Quadro ^{[1, 2]} ; Fontes, Laiane de Moura ^[3] ; Ribessi, Rafael Luis ^[3] ; Pasquini, Celio ^[3] ; Ribeiro, Anderson Schwingel ^[2]

Affiliation

^[1] Fed Univ Rio Grande, Sch Chem & Food, Rio Grande, RS - Brazil

^[2] Univ Fed Pelotas, Ctr Chem Pharmaceut & Food Sci, Pelotas, RS - Brazil

^[3] Univ Estadual Campinas, Inst Chem, Campinas, SP - Brazil

• Document type: Journal article
• Source: Analytical Letters; v. 53, n. 9 DEC 2019.
• Web of Science Citations: 0

Abstract

Ceramics manufactured in Brazil and in other countries were analyzed by laser induced breakdown spectroscopy (LIBS). The LIBS spectra were employed to identify the origin of the tableware as produced in Brazil or abroad using soft independent modeling of class analogy (SIMCA) and linear discriminant analysis (LDA). Three sets of spectral variables were evaluated aiming at discrimination of the ceramics: the entire LIBS spectrum, a set of selected spectral ranges, and the maximum of emission intensity of the elements Al, Ca, Mg, Si, Na and Ti. The results for the three sets of variables show good performance, achieving correct classification from 88.6 to 94.3%, and 86.7 to 100% for the external training and test, respectively. (AU)

• FAPESP's process: 08/57808-1 - National Institute of Advanced Analytical Science and Technology
• Grantee: Celio Pasquini
• Support Opportunities: Research Projects - Thematic Grants