Optimization of laser-induced breakdown spectroscopy parameters from the design of experiments for multi-element qualitative analysis in river sediment

Autor(es)

de Morais, Carla Pereira ^{[1, 2, 3]} ; Nicolodelli, Gustavo ^[4] ; Mitsuyuki, Milene Corso ^[1] ; Mounier, Stephane ^[3] ; Pereira Milori, Debora Marcondes Bastos ^[1]

Afiliação do(s) autor(es)

^[1] Embrapa Instrumentat, BR-13560970 Sao Carlos, SP - Brazil

^[2] Univ Sao Paulo, Sao Carlos Inst Chem, BR-13566590 Sao Carlos, SP - Brazil

^[3] Univ Toulon & Var, Aix Marseille Univ, CNRS, IRD, MIO UM 110, Mediterranean Inst Oceanog, INSU, CS 60584, F-83041 Toulon 9 - France

^[4] Univ Fed Santa Catarina, Dept Phys, BR-88040900 Florianopolis, SC - Brazil

• Tipo de documento: Artigo Científico
• Fonte: SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY; v. 177, MAR 2021.
• Citações Web of Science: 0

Resumo

Laser-induced breakdown spectroscopy (LIBS) is a fast, low analytical cost, environmentally clean technique that does not require the use of reagents for sample preparation. However, regardless of the LIBS setup, it has limitations in terms of sensitivity and precision, especially when applied to complex samples, such as river sediment. To overcome these limitations, in this work, different experimental parameters were optimized for multi-element analysis of a river sediment sample using design of experiments (DOE) approaches, i.e., fractional factorial and central composite designs (CCD). The findings demonstrated that DOE applied to the LIBS technique can be used as an efficient tool for optimizing the key parameters affecting sediment analysis by LIBS. (AU)

• Processo FAPESP: 16/14227-5 - Mudanças climáticas e impactos ambientais em áreas alagadas (wetlands) do Pantanal (Brasil): quantificação, fatores de controle e previsão em longo prazo
• Beneficiário: Adolpho José Melfi
• Linha de fomento: Auxílio à Pesquisa - Programa de Pesquisa sobre Mudanças Climáticas Globais - Temático
• Processo FAPESP: 13/07276-1 - CEPOF - Centro de Pesquisa em Óptica e Fotônica
• Beneficiário: Vanderlei Salvador Bagnato
• Linha de fomento: Auxílio à Pesquisa - Centros de Pesquisa, Inovação e Difusão - CEPIDs