DOI: 10.17265/2159-5828/2019.05.002
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Deborah Cristina Crominski da Silva, Clecius Henrique Chemim, Leticia Yuriko Togawa, Fabiano Piechotcoski, Erica Roberta Lovo da Rocha Watanabe, Priscilla dos Santo Gaschi Leite, Eduardo Sidinei Chaves, Simone Delezuk Inglez

Abstract: Conventional procedures for sample preparation, such as calcination and acid digestion, were compared with an alternative procedure: alkaline solubilization and ultrasound-assisted extraction. The procedures were evaluated by the application of the mentioned sample preparation and subsequent determination of Mg and Zn in milk powder samples by flame atomic absorption spectrometry (FAAS). The results indicated that ultrasound-assisted extraction was not suitable for Zn and Mg extraction, whereas alkaline solubi…

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