Detalhes do Artigo
[304988] Certification of a Reference Material (CRM) of Selenium enriched yeast
Autores: Márcia Silva da Rocha, Lilian da Silva, Jefferson Rodrigues de Souza, Lucas Junqueira de Carvalho, Rodrigo Vivarelli Poggi Leal, Thiago de Oliveira Araujo, Marcelo Dominguez de Almeida, Rodrigo Caciano de Sena, Janaína Marques Rodrigues Caixeiro
Resumo: Certified reference materials (CRMs) are essential tools for ensuring food safety, playing a critical role in methods development, validation, as well as internal and external quality control. CRMs are also used in the verification of the accuracy of analytical methods, for the measurement uncertainty estimation, to assess the traceably of the analytical results or the calibration of analytical instruments. In this work, we present the production and certification process of a reference material (selenium-enriched yeast). The studies for the certification of reference material (CRM 8969.0001) were realized by the Inorganic Analysis Laboratory (Labin) of the National Institute of Metrology, Quality and Technology (Inmetro). The batch preparation (lot), the homogeneity, stability, characterization studies are presented. The certified values includes total selenium (total Se) content (2637 ± 139) mg/kg and selenomethionine (SeMet) content (3248 ± 325) mg/kg.