Method development for direct quantitative analysis of high silicon content samples: laser-induced breakdown spectrometry and Total Reflection X-Ray Fluorescence

• Grant number: 17/10346-2
• Support Opportunities: Regular Research Grants
• Start date: November 01, 2017
• End date: October 31, 2019
• 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

Abstract

Considering the refractory characteristic of high silicon content samples, such as rocks and slags that require use of different acid mixtures, high pressure and temperature to reach quantitative dissolution, the possibility of performing direct analysis seems to be a good alternative. Laser induced breakdown spectrometry (LIBS) has become an attractive and much explored technique in chemical analysis and, as a solid sampling technique, it allows analysis of solid samples dismissing the dissolution step. Despite all advantages, quantitative analysis of complex matrix by LIBS is not an easy task due to the complex nature of laser-sample and particle-plasma interaction, which cause an undesirable matrix effects. In these cases, the use of appropriate method calibration associated to optimization of instrumental and sample parameters are imperative. Considering quantitative analysis of complex matrix by LIBS is a challenge, the aim of this project is to evaluate the feasibility of using LIBS to perform quantitative measurements of some macro and microelements in high silicon content samples such as rocks and slags. We also intend to evaluate and compare the performance of total reflection X-ray fluorescence (TXRF) in the direct analysis of these samples. Although this technique is widely used in direct solid samples analysis, the influence of particle size on the analytical results as well as the interference of major elements over the minor one should be understood to makes quantitative analysis feasible. (AU)

Scientific publications

(7)

(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)

DE OLIVEIRA, ALINE PEREIRA; DOS SANTOS, GISELAINE ALVES; NOMURA, CASSIANA SEIMI; NAOZUKA, JULIANA. Elemental chemical composition of products derived from kefir fermented milk. Journal of Food Composition and Analysis, v. 78, p. 86-90, MAY 2019. (18/06332-9, 17/05009-7, 17/10346-2, 15/15510-0)

CARVALHO, ALEXANDRINA A. C.; SILVESTRE, DANIEL M.; LEME, FLAVIO O.; NAOZUKA, JULIANA; INTIMA, DANIELLE P.; NOMURA, CASSIANA S.. Feasibility of measuring Cr(III) and Cr(VI) in water by laser-induced breakdown spectroscopy using ceramics as the solid support. Microchemical Journal, v. 144, p. 33-38, JAN 2019. (13/13478-6, 12/11998-0, 17/10346-2, 14/50951-4)

FERNANDES, ARTHUR B.; PAVLIUK, V, MARIIA; PAUN, CRISTINA; CARVALHO, ALEXANDRINA C.; NOMURA, CASSIANA S.; LEWIN, ERIK; LINDBLAD, REBECKA; CAMARGO, PEDRO H. C.; SA, JACINTO; BASTOS, ERICK L.. Recoverable and Reusable Polymer Microbead-Supported Metal Nanocatalysts for Redox Chemical Transformations. ACS APPLIED NANO MATERIALS, v. 3, n. 2, p. 1722-1730, FEB 2020. (14/22136-4, 17/10346-2, 19/08450-1, 19/06391-8, 15/25629-4)

PAPAI, RODRIGO; MARIANO, CLEIDE DA SILVA; PEREIRA, CAMILA VILELA; FERREIRA DA COSTA, PAULO VINICIUS; LEME, FLAVIO DE OLIVEIRA; NOMURA, CASSIANA SEIMI; GAUBEUR, IVANISE. Matte photographic paper as a low-cost material for metal ion retention and elemental measurements with laser-induced breakdown spectroscopy. Talanta, v. 205, DEC 1 2019. (17/10346-2, 16/23878-0)

DE OLIVEIRA, ALINE PEREIRA; LEME, FLAVIO DE OLIVEIRA; NOMURA, CASSIANA SEIMI; NAOZUKA, JULIANA. Elemental imaging by Laser-Induced Breakdown Spectroscopy to evaluate selenium enrichment effects in edible mushrooms. SCIENTIFIC REPORTS, v. 9, JUL 25 2019. (18/06332-9, 17/05009-7, 17/10346-2)

CARVALHO, ALEXANDRINA A. C.; COZER, LARISSA A.; LUZ, MACIEL S.; NUNES, LIDIANE C.; ROCHE, FABIO R. P.; NOMURA, CASSIANA S.. Multi-energy calibration and sample fusion as alternatives for quantitative analysis of high silicon content samples by laser-induced breakdown spectrometry. Journal of Analytical Atomic Spectrometry, v. 34, n. 8, p. 1701-1707, AUG 1 2019. (17/10346-2, 12/11998-0, 14/50951-4)

CARVALHO, ALEXANDRINA A. C.; LEME, FLAVIO O.; LUZ, MACIEL S.; OLIVEIRA, PEDRO V.; NOMURA, CASSIANA S.. Internal standard fused glass beads for high silicon content sample analysis by laser-induced breakdown spectrometry. Journal of Analytical Atomic Spectrometry, v. 33, n. 7, p. 1243-1250, JUL 2018. (17/10346-2, 12/11998-0)