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Calibration in Laser-Induced Breakdown Spectroscopy (LIBS): alternatives, challenges, proposals comparison and proposition of a universal procedure

Grant number: 19/24223-5
Support type:Regular Research Grants
Duration: July 01, 2020 - June 30, 2022
Field of knowledge:Physical Sciences and Mathematics - Chemistry - Analytical Chemistry
Principal Investigator:Edenir Rodrigues Pereira Filho
Grantee:Edenir Rodrigues Pereira Filho
Home Institution: Centro de Ciências Exatas e de Tecnologia (CCET). Universidade Federal de São Carlos (UFSCAR). São Carlos , SP, Brazil

Abstract

In this project a universal calibration strategy will be proposed focusing solid samples analysis by laser-induced breakdown spectroscopy (LIBS). Several univariate and multivariate calibration proposals will be tested for food, electronic waste and sugarcane samples direct analysis. The elements that will be determined are toxic and essentials. A research team composed of chemistries, mathematician and physics, as well as, master and PhD students will work together in order to apply artificial neural network, calibration free and data fusion. Parallel factor analysis (PARAFAC) will be used for data processing and removal of possible spectral interference. (AU)