Fast Determination of Cd, Fe, Pb, and Zn in Food using AAS

Autor(es)

Da-Col, Jose Augusto ^[1] ; Domene, Semiramis M. A. ^[2] ; Pereira-Filho, Edenir R. ^[1]

Afiliação do(s) autor(es)

^[1] Univ Fed Sao Carlos, Ctr Ciencias Exatas & Tecnol, Dept Quim, Grp Anal Instrumental Aplicada, BR-13565905 Sao Carlos, SP - Brazil

^[2] Pontificia Univ Catolica Campinas, Ctr Ciencias Vida, Fac Nutr, BR-13060904 Campinas, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: FOOD ANALYTICAL METHODS; v. 2, n. 2, p. 110-115, JUN 2009.
• Citações Web of Science: 25

Resumo

Analytical chemistry plays a fundamental role in proposing fast and reliable procedures to analyze food samples. Proper selection and introduction of complementary foods during the breastfeeding period and childhood reduce the vulnerability to micronutrient deficiencies. This study aimed to propose a sensitive approach for the promotion of adequate food supplements regarding Cd, Fe, Pb, and Zn content. These metals were determined using flame atomic absorption spectrometry (Fe and Zn) and thermospray flame furnace atomic absorption spectrometry (Cd and Pb). A simple procedure mixing the sample (100 mg) with 0.1 mol/L HCl was proposed. Cadmium and Zn showed suitable results when a bovine liver certified sample (SRM 1577b) was studied, and the Fe content was strongly correlated to the size of the particle. Cadmium and Pb were not found in the food samples studied. (AU)

• Processo FAPESP: 07/04515-4 - Avaliação da combinação da espectrometria de absorção atômica com determinação sequencial e a espectrometria de absorção atômica com tubo na chama e aerossol térmico
• Beneficiário: Edenir Rodrigues Pereira Filho
• Modalidade de apoio: Auxílio à Pesquisa - Regular
• Processo FAPESP: 04/01970-4 - Melhoria do desempenho analítico em espectrometria de absorção atômica: estudo e aprimoramento de sistemas atomizadores
• Beneficiário: Edenir Rodrigues Pereira Filho
• Modalidade de apoio: Auxílio à Pesquisa - Jovens Pesquisadores