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(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

Evaluation of Two Fully Automated Setups for Mycotoxin Analysis Based on Online Extraction-Liquid Chromatography-Tandem Mass Spectrometry

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Autor(es):
Vasconcelos Soares Maciel, Edvaldo [1] ; Mejia-Carmona, Karen [1] ; Lancas, Fernando Mauro [1]
Número total de Autores: 3
Afiliação do(s) autor(es):
[1] Univ Sao Paulo, Sao Carlos Inst Chem, BR-13560970 Sao Carlos, SP - Brazil
Número total de Afiliações: 1
Tipo de documento: Artigo Científico
Fonte: Molecules; v. 25, n. 12 JUN 2020.
Citações Web of Science: 0
Resumo

Mycotoxins are secondary metabolites of fungi species widely known for their potentially toxic effects on human health. Considering their frequent presence in crops and their processed food, monitoring them on food-based matrices is now an important topic. Within such a context, the sample preparation step is usually mandatory before the chromatographic analysis, due to the complexity of matrices such as nuts, cereals, beverages, and others. For these reasons, we herein present the evaluation of two greener setups, based on the automation and miniaturization of the sample preparation step for mycotoxin analysis in different beverages. Firstly, we describe an analytical method based on a multidimensional assembly, coupling a lab-made microextraction column (508 mu m i.d. x 100 mm) to a UPLC-MS/MS for the analysis of ochratoxin A in beverages. This configuration used a synthesized sorbent phase containing C18-functionalized graphene-silica particles, which exhibited excellent extraction performance, as well as being reusable and cheaper than commercially available extractive phases. Sequentially, a second setup, based on a multidimensional capillary LC coupled to MS/MS, was assessed for the same purpose. In this case, a graphene oxide-based capillary extraction column (254 mu m i.d. x 200 mm) was used as the first dimension, while a C18 analytical capillary column performed the mycotoxin separation in beverages. Although this second one has similarities with the first, we focused mainly on the benefits related to the link between a miniaturized/automated sample preparation device with a capillary LC-MS/MS system, which made our analysis greener. Additionally, the chromatographic efficiency could even be enhanced. (AU)

Processo FAPESP: 17/02147-0 - Cromatografia líquida em uma gota e seu acoplamento com espectrometria de massas: estratégias instrumentais, desenvolvimento de materiais, automatização e aplicações analíticas
Beneficiário:Fernando Mauro Lanças
Linha de fomento: Auxílio à Pesquisa - Temático
Processo FAPESP: 15/15462-5 - Emprego do grafeno como material sorvente em técnicas miniaturizadas de preparo de amostra.
Beneficiário:Bruno Henrique Fumes
Linha de fomento: Bolsas no Brasil - Doutorado
Processo FAPESP: 14/07347-9 - Desenvolvimento de novos materiais e dispositivos para técnicas miniaturizadas de preparo de amostras na área de segurança alimentar
Beneficiário:Fernando Mauro Lanças
Linha de fomento: Auxílio à Pesquisa - Regular