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Laser-Induced Breakdown Spectroscopy (LIBS) and chemometric tools: simulation of direct hard disk printed circuit board fragments analysis and sorting

Grant number: 18/17753-5
Support type:Scholarships abroad - Research Internship - Doctorate
Effective date (Start): February 01, 2019
Effective date (End): October 31, 2019
Field of knowledge:Physical Sciences and Mathematics - Chemistry - Analytical Chemistry
Principal Investigator:Edenir Rodrigues Pereira Filho
Grantee:Jeyne Pricylla de Castro
Supervisor abroad: Rasmus Bro
Home Institution: Centro de Ciências Exatas e de Tecnologia (CCET). Universidade Federal de São Carlos (UFSCAR). São Carlos , SP, Brazil
Local de pesquisa : University of Copenhagen, Denmark  
Associated to the scholarship:16/17221-8 - Composition evaluation of hard discs from electronic waste using spectroanalytical techniques: rare earth and noble metals determination, BP.DR


Over the years, the amount of electrical and electronic equipment is growing at great rate due to higher levels of disposable income, urbanization and industrialization in many countries. There are many elements of industrial and strategic importance in the e-waste, being a technological source of resources for recovery. Analytical techniques are used to characterization these materials. The goal of this project is the use Laser-induced breakdown spectroscopy (LIBS) as alternative technique for hard disk (HD) printed circuit board (PCB) analysis, which have in its composition precious elements. For propose a reliable analytical method using LIBS, chemometrics tools are indispensable. Therefore, the study of different and complex chemometric models is necessary. The combination the features of LIBS (no sample preparation, high analytical frequency and multivariate nature) and power of chemometrics produce satisfactory results for PCB chemical composition determination.

Scientific publications
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
CASTRO, JEYNE PRICYLLA; SPERANCA, MARCO AURELIO; BABOS, DIEGO VICTOR; ANDRADE, DANIEL FERNANDES; PEREIRA-FILHO, EDENIR RODRIGUES. Neodymium determination in hard drive disks magnets using different calibration approaches for wavelength dispersive X-ray fluorescence. SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY, v. 164, FEB 2020. Web of Science Citations: 0.

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