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J Chromatogr A

Title:		Determination of volatile organic compounds in recycled polyethylene terephthalate and high-density polyethylene by headspace solid phase microextraction gas chromatography mass spectrometry to evaluate the efficiency of recycling processes
Author(s):		Dutra C; Pezo D; Freire MT; Nerin C; Reyes FG;
Address:		"Department of Food Science, Faculty of Food Engineering, State University of Campinas, Campinas, Sao Paulo, Brazil"
Journal Title:		J Chromatogr A
Year:		2011
Volume:		20110104
Issue:		10
Page Number:		1319 - 1330
DOI:		10.1016/j.chroma.2010.12.099
ISSN/ISBN:		1873-3778 (Electronic) 0021-9673 (Linking)
Abstract:		"A method for the determination of volatile organic compounds (VOCs) in recycled polyethylene terephthalate and high-density polyethylene using headspace sampling by solid-phase microextraction and gas chromatography coupled to mass spectrometry detection is presented. This method was used to evaluate the efficiency of cleaning processes for VOC removal from recycled PET. In addition, the method was also employed to evaluate the level of VOC contamination in multilayer packaging material containing recycled HDPE material. The optimisation of the extraction procedure for volatile compounds was performed and the best extraction conditions were found using a 75 mum carboxen-polydimethylsiloxane (CAR-PDMS) fibre for 20 min at 60 degrees C. The validation parameters for the established method were linear range, linearity, sensitivity, precision (repeatability), accuracy (recovery) and detection and quantification limits. The results indicated that the method could easily be used in quality control for the production of recycled PET and HDPE"
Keywords:		Food Packaging Gas Chromatography-Mass Spectrometry/*methods Linear Models Polyethylene/*chemistry Polyethylene Terephthalates/*chemistry Recycling Reproducibility of Results Sensitivity and Specificity Solid Phase Microextraction/*methods Volatile Organi;
Notes:		"MedlineDutra, Camila Pezo, Davinson Freire, Maria Teresa de Alvarenga Nerin, Cristina Reyes, Felix Guillermo Reyes eng Research Support, Non-U.S. Gov't Netherlands 2011/02/05 J Chromatogr A. 2011 Mar 11; 1218(10):1319-30. doi: 10.1016/j.chroma.2010.12.099. Epub 2011 Jan 4"