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Feasibility of using laser-induced breakdown spectrometry on trace elements determination in refractory, liquid and food samples

Grant number: 21/14125-6
Support Opportunities:Regular Research Grants
Duration: March 01, 2022 - February 29, 2024
Field of knowledge:Physical Sciences and Mathematics - Chemistry - Analytical Chemistry
Principal Investigator:Cassiana Seimi Nomura
Grantee:Cassiana Seimi Nomura
Host Institution: Instituto de Química (IQ). Universidade de São Paulo (USP). São Paulo , SP, Brazil
Associated researchers:Aline Soriano Lopes ; Ivanise Gaubeur ; Juliana Naozuka ; Maciel Santos Luz ; Thiago Regis Longo Cesar da Paixão

Abstract

Laser induced breakdown spectrometry (LIBS) is a simultaneous multi elemental methods that enables a direct and fast analysis (0.5 min) of solid, liquid and gaseous samples; it shows a microanalytical capability since allows analysis of a very low sample mass size (<100ug) and for this reason is a quasi-nondestructive method; it allows an on-site and remote analysis since portable instruments are available. Despite all those advantages, LIBS is still young in terms of analytical application in real sample analysis and shows many challenges that have to be understood and overcome. The microanalytical capability associated with the sample heterogeneity commonly results in low precision results. In the case of solid samples, particle sizes affect the atomization efficiency and together with the complex nature of sample-laser interaction causes a strong and undesirable chemical interference, making the quantitative analysis an issue and has been considered the "Achilles' heel" of the method. In this context, evaluating instrumental parameters, as well as sample parameters associated with the proposing of appropriate calibration strategies, are imperative to enable quantitative analysis in complex samples. This project proposes join effort of three research groups in ordem to make LIBS feasible at least in three different applications: analysis of refractory samples since LIBS allows direct solid samples analysis; elemental mapping in food samples due to LIBS microanalytical capability and liquid samples analysis (water, oil and lubricant) after proposing analyte preconcentration strategies. (AU)

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Scientific publications (5)
(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)
JOCA, JHONNY FRANK SOUSA; PAPAI, RODRIGO; NUNES, LIDIANE CRISTINA; LUZ, MACIEL SANTOS; KRUG, FRANCISCO JOSE; GAUBEUR, IVANISE. A novel strategy for preparing calibration standards for laser-induced breakdown spectroscopy using beeswax as a substrate: A case study with cosmetic and lubricant oil samples. SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY, v. 198, p. 13-pg., . (11/19730-3, 21/14125-6, 16/23878-0, 17/20752-8)
DE LIMA JUNIOR, JOAO MANOEL; PAPAI, RODRIGO; MAMIAN-LOPEZ, MONICA BENICIA; DOMINGUES, SERGIO HUMBERTO; NUNES, LIDIANE CRISTINA; KRUG, FRANCISCO JOSE; GAUBEUR, IVANISE. Dispersive micro solid-phase extraction combined with laser-induced breakdown spectroscopy for multielement extraction and determination. SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY, v. 204, p. 10-pg., . (17/20752-8, 18/10476-6, 11/19730-3, 21/14125-6, 16/23878-0)
ELIAS, ALINE DE CARVALHO; LUZ, MACIEL SANTOS; GAUBEUR, IVANISE; NAOZUKA, JULIANA; ROCHA, FABIO RODRIGO PIOVEZANI; NOMURA, CASSIANA SEIMI. Feasibility of laser-induced breakdown spectroscopy for determination of neodymium in magnet alloys. Journal of Analytical Atomic Spectrometry, v. N/A, p. 8-pg., . (14/50887-4, 12/11998-0, 21/14125-6)
ELIAS, ALINE DE CARVALHO; LUZ, MACIEL SANTOS; GAUBEUR, IVANISE; NAOZUKA, JULIANA; ROCHA, FABIO RODRIGO PIOVEZANI; NOMURA, CASSIANA SEIMI. Feasibility of laser-induced breakdown spectroscopy for determination of neodymium in magnet alloys. Journal of Analytical Atomic Spectrometry, v. 38, n. 10, p. 8-pg., . (14/50887-4, 12/11998-0, 21/14125-6)
LANA DIAS, SAPHIRE DE SOUZA; DE OLIVEIRA, ALINE PEREIRA; GAUBEUR, IVANISE; NOMURA, CASSIANA SEIMI; NAOZUKA, JULIANA. Optimization of the Protein Sequential Extraction for Quantitative Determination of Albumins, Globulins, Prolamins and Glutelins in Edible Mushrooms. BRAZILIAN JOURNAL OF ANALYTICAL CHEMISTRY, v. 10, n. 40, p. 11-pg., . (19/00663-6, 21/14125-6, 17/05009-7, 18/06332-9)

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