Analytical extraction procedure combined with atomic and mass spectrometry for the determination of tin in edible oil samples, and the potential application to other chemical elements

Autor(es)

da Silva, Antonio Francisco ^[1] ; Papai, Rodrigo ^[2] ; Luz, Maciel Santos ^[2] ; Gaubeur, Ivanise ^[1]

Afiliação do(s) autor(es)

^[1] Univ Fed ABC, Ctr Ciencias Nat & Humanas, Lab Espectroanalit Mol & Atom, Ave Estados, 5001, Bloco L-407, BR-09210971 Santo Andre, SP - Brazil

^[2] Inst Pesquisas Tecnol Estado Sao Paulo IPT, Ave Prof Almeida Prado, 532, Predio 2, BR-05508901 Sao Paulo, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Journal of Food Composition and Analysis; v. 96, MAR 2021.
• Citações Web of Science: 0

Resumo

Extraction induced by emulsion breaking was combined with graphite furnace atomic absorption spectrometry (GF AAS) and inductively coupled plasma mass spectrometry (ICP-MS) for the determination of tin in edible oil samples. Emulsion preparation was carried out by vortex agitation with Triton X-114 in diluted nitric acid. The emulsion breaking was reached by heating. Calibration curves were obtained by GF AAS and ICP-MS from 10 to 100 mu g L-1 and from 0.1-10 mu g L-1, respectively. The limits of detection were 1.1 and 0.009 mu g L-1, respectively, and the limits of quantification were 3.6 and 0.03 mu g L-1, respectively. Accuracy was assessed by spike and recovery tests and also by comparison with microwave-assisted acid digestion. The results obtained by both sample preparation methods were consistent for oil samples of olive, corn, and fish. In addition, the potential of the proposed analytical method was investigated for other 17 chemical elements. (AU)

• Processo FAPESP: 17/20752-8 - EMU concedido no processo 2014/50887-4: ICP-MS
• Beneficiário: Fernando Jose Gomes Landgraf
• Modalidade de apoio: Auxílio à Pesquisa - Programa Equipamentos Multiusuários
• Processo FAPESP: 16/23878-0 - Consolidação e inovação da linha de pesquisa: desenvolvimento de métodos analíticos combinados a microextração em fase líquida
• Beneficiário: Ivanise Gaubeur
• Modalidade de apoio: Auxílio à Pesquisa - Regular
• Processo FAPESP: 11/19730-3 - Emprego da extração em ponto nuvem (CPE) e da microextração líquido-líquido dispersiva (DLLME) no desenvolvimento de métodos analíticos para a pré-concentração e determinação espectrométrica de metais
• Beneficiário: Ivanise Gaubeur
• Modalidade de apoio: Auxílio à Pesquisa - Regular