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.
CITATION STYLE
Fabris, S., Freire, M. T. de A., Wagner, R., & Reyes, F. G. (2010). A method to determine volatile contaminants in polyethylene terephthalate (PET) packages by HDC-GC-FID and its application to post-consumer materials. Ciência e Tecnologia de Alimentos, 30(4), 1046–1055. https://doi.org/10.1590/s0101-20612010000400033
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