Simultaneous determination of fumonisins B1 and B2 in different types of maize by matrix solid phase dispersion and HPLC-MS/MS
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Universidade Federal de Minas Gerais
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Artigo de periódico
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This work involved the optimization and validation of a method, according to Directive 2002/657/EC and the Analytical Quality Assurance Manual of Ministério da Agricultura, Pecuária e Abastecimento, Brazil, for simultaneous extraction and determination of fumonisins B1 and B2 in maize. The extraction procedure was based on a matrix solid phase dispersion approach, the optimization of which employed a sequence of different factorial designs. A liquid chromatography-tandem mass spectrometry method was developed for determining these analytes using the selected reaction monitoring mode. The optimized method employed only 1 g of silica gel for dispersion and elution with 70% ammonium formate aqueous buffer (50 mmol L−1, pH 9), representing a simple, cheap and chemically friendly sample preparation method. Trueness (recoveries: 86–106%), precision (RSD ≤19%), decision limits, detection capabilities and measurement uncertainties were calculated for the validated method. The method scope was expanded to popcorn kernels, white maize kernels and yellow maize grits.
Abstract
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Milho, Milho de pipoca, Cromatografia líquida, Espectrometria de massa, Extração (Química), Silica gel, Preparação de amostra (Química), Micotoxinas, Alimentos, Análise
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Fumonisins, Maize, Popcorn kernels, White maize kernels, Yellow maize grits, Matrix solid phase dispersion, HPLC-MS/MS, Milho
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https://www.sciencedirect.com/science/article/pii/S0308814617306623#!