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Type: Artigo de periódico
Title: A Method To Determine Volatile Contaminants In Polyethylene Terephthalate (pet) Packages By Hdc-gc-fid And Its Application To Post-consumer Materials [determinação De Contaminantes Voláteis Em Embalagens De Polietileno Terefalato (pet) Por Cdel-cg-dic E Sua Aplicação A Materiais Pós-consumo]
Author: Fabris S.
Freire M.T.A.
Wagner R.
Reyes F.G.
Abstract: A simple and low cost method to determine volatile contaminants in post-consumer recycled PET flakes was developed and validated by Headspace Dynamic Concentration and Gas Chromatography-Flame Ionization Detection (HDC-GC-FID). The analytical parameters evaluated by using surrogates include: correlation coefficient, detection limit, quantification limit, accuracy, intra-assay precision, and inter-assay precision. In order to compare the efficiency of the proposed method to recognized automated techniques, post-consumer PET packaging samples collected in Brazil were used. GC-MS was used to confirm the identity of the substances identified in the PET packaging. Some of the identified contaminants were estimated in the post-consumer material at concentrations higher than 220 ng.g-1. The findings in this work corroborate data available in the scientific literature pointing out the suitability of the proposed analytical method.
Rights: aberto
Identifier DOI: 10.1590/S0101-20612010000400033
Date Issue: 2010
Appears in Collections:Unicamp - Artigos e Outros Documentos

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