Microwave-assisted UV digestion of starch and skimmed milk powder: Environmentally friendly protocol for essential and toxic elements determination

The present work evaluated a microwave-assisted wet digestion method using diluted HNO with in situ UV radiation for the digestion of starch and skimmed milk powder for further metals determination by spectrometric plasma-based techniques. The sample digestion was conducted using an in situ UV lamp...

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Bibliographic Details
Published in:Talanta (Oxford) 2024-04, Vol.270, p.125575-125575, Article 125575
Main Authors: Ramos do Nascimento, Vanessa, Pereira de Almeida, Débora, Giacobe, Karen, Marlon de Moraes Flores, Erico, Augusto Bizzi, Cezar
Format: Article
Language:English
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Summary:The present work evaluated a microwave-assisted wet digestion method using diluted HNO with in situ UV radiation for the digestion of starch and skimmed milk powder for further metals determination by spectrometric plasma-based techniques. The sample digestion was conducted using an in situ UV lamp (electrodeless discharge lamp), and the digestion efficiency was improved by employing O (20 bar) and 2 mL 30 % H O as auxiliary reagents. The accuracy of the proposed digestion method was evaluated by metals determination (Ca, Cd, Cu, Fe, K, Mg, Mo, Mn, Na, Pb, and Zn) in certificated reference material, which agreed with certified values (Student t-test
ISSN:0039-9140
1873-3573
DOI:10.1016/j.talanta.2023.125575