Produção Nacional
Revisado por pares
Quantificação de antimônio em garrafas de politereftalato de etileno (PET) brasileiras por fluorescência de raios-X e avaliação quimiométrica para verificar a presença de pet reciclado através do teor de ferro
2011; Brazilian Chemical Society; Volume: 34; Issue: 8 Linguagem: Inglês
10.1590/s0100-40422011000800017
ISSN1678-7064
AutoresGustavo G. Shimamoto, Bianca Kazitoris, Luís Francisco Ramos Lima, Nathassia D. de Abreu, Vitor T. Salvador, Maria Izabel M. S. Bueno, Eustáquio Vinícius Ribeiro de Castro, Eloi Alves da Silva Filho, Wanderson Romão,
Tópico(s)Recycling and Waste Management Techniques
ResumoAntimony is a common catalyst in the synthesis of polyethylene terephthalate used for food-grade bottles manufacturing.However, antimony residues in final products are transferred to juices, soft drinks or water.The literature reports mentions of toxicity associated to antimony.In this work, a green, fast and direct method to quantify antimony, sulfur, iron and copper, in PET bottles by X-ray fluorescence spectrometry is presented.2.4 to 11 mg Sb kg -1 were found in 20 samples analyzed.The coupling of the multielemental technique to chemometric treatment provided also the possibility to classify PET samples between bottle-grade PET/ recycled PET blends by Fe content.
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