Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/58592
Type: Artigo de periódico
Title: 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, GG
Kazitoris, B
de Lima, LFR
de Abreu, ND
Salvador, VT
Bueno, MIMS
de Castro, EVR
Filho, EAS
Romao, W
Abstract: 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. 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
Country: Brasil
Editor: Soc Brasileira Quimica
Rights: aberto
Date Issue: 2011
Appears in Collections:Unicamp - Artigos e Outros Documentos

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