Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/202510
Type: Artigo de periódico
Title: 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
Title Alternative: Quantification of antimony in Brazilian polyethylene terephthalate (PET) bottles by X-ray fluorescence and chemometric evaluation to verify the presence of recycled pet through iron content
Author: Shimamoto, Gustavo G.
Kazitoris, Bianca
Lima, Luis F. R. de
Abreu, Nathassia D. de
Salvador, Vitor T.
Bueno, Maria Izabel M. S.
Castro, Eustáquio V. R. de
S. Filho, Elói A.
Romão, Wanderson
Abstract: Antimony 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.
Subject: antimony
PET bottles
X-ray fluorescence
Editor: Sociedade Brasileira de Química
Citation: Química Nova. Sociedade Brasileira de Química, v. 34, n. 8, p. 1389-1393, 2011.
Rights: aberto
Identifier DOI: 10.1590/S0100-40422011000800017
Address: http://dx.doi.org/10.1590/S0100-40422011000800017
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422011000800017
Date Issue: 1-Jan-2011
Appears in Collections:Unicamp - Artigos e Outros Documentos

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