A method to determine volatile contaminants in polyethylene terephthalate (PET) packages by HDC-GC-FID and its application to post-consumer materials

摘要: A simple and low cost method to determine volatile contaminants in post-consumer recycled PET flakes was developed validated by Headspace Dynamic Concentration Gas Chromatography-Flame Ionization Detection (HDC-GC-FID). The analytical parameters evaluated using surrogates include: correlation coefficient, detection limit, quantification accuracy, intra-assay precision, inter-assay precision. In order compare the efficiency of proposed recognized automated techniques, packaging samples collected Brazil were used. GC-MS used confirm identity substances identified packaging. Some estimated material at concentrations higher than 220 ng.g-1. findings this work corroborate data available scientific literature pointing out suitability method.