2013
DOI: 10.1590/s0100-40422013000600023
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Análise exploratória rápida e não destrutiva (screening) da presença de elementos químicos tóxicos em material escolar por fluorescência de raios x

Abstract: Recebido em 5/7/12; aceito em 30/11/12; publicado na web em 8/3/13 SCREENING INVESTIGATION OF TOXIC CHEMICAL ELEMENTS IN SCHOOL SUPPLIES BY X-RAY FLUORESCENCE. Compulsory in Brazil, toy certification aims to prevent possible risks in toy use. The Brazilian National Institute of Metrology (INMETRO) establishes the maximum concentration of toxic elements (TE) that may be present in toys. This study evaluates the presence of TE in different crayons, gouache and modeling clays using X-ray fluorescence. This techni… Show more

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