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Author(s): Rita Araújo
José Luís Moreira
Nuno Ratola
Lúcia Santos
Arminda Alves
Title: Melamine and Cyanuric Acid in Foodstuffs and Pet Food: Method Validation and Sample Screening
Issue Date: 2012
Abstract: Hazardous levels of melamine in food and feed products have been of great concern after the outbreak of contamination reported in Chinese commodities in 2008. Despite the existence of several analytical methods for melamine (MEL) detection in food, few provide a full validation data set, especially when MEL and cyanuric acid (CYA) are analyzed simultaneously. The aim of this study was to validate an analytical methodology for MEL and CYA analysis in foodstuffs by GC-MS after trimethylsilylation with N, O-bis(trimethylsilyl)trifluoroacetamide. Linearity was obtained in the range of 0.4 to 800 mg/kg for both compounds, with limits of detection (LODs) of 0.15 and 0.05 mg/kg for MEL and CYA, respectively. Screening in 20 food products [3 soya milk powder, 1 baby milk powder, 3 soya powder, 13 diversified cookies and biscuits (8 from China and 2 from Portugal), and 3 dog food) revealed MEL incidence in 55% of the cases, with a maximum concentration of 3.4 mg/kg. CYA was not detected in all samples.
Subject: Química
Chemical sciences
Scientific areas: Ciências exactas e naturais::Química
Natural sciences::Chemical sciences
Related Information: info:eu-repo/grantAgreement/FCT - Fundação para a Ciência e Tecnologia/Projectos de I&DT em Todos os Domínios Científicos/PTDC/AGR-CFL/73156/2006/Agulhas de Pinheiro como Biomonitores de Poluentes Orgânicos Persistentes Atmosféricos/POPs
Document Type: Artigo em Revista Científica Internacional
Rights: restrictedAccess
Appears in Collections:FEUP - Artigo em Revista Científica Internacional

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