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

被引：68

作者：

Dutra, Camila ^{[1
]}

Pezo, Davinson ^{[2
]}

de Alvarenga Freire, Maria Teresa ^{[3
]}

Nerin, Cristina ^{[2
]}

Reyes Reyes, Felix Guillermo ^{[1
]}

机构：

[1] Univ Estadual Campinas, Dept Food Sci, Fac Food Engn, Sao Paulo, Brazil

[2] CPS Univ Zaragoza, Dept Analyt Chem, Aragon Inst Engn Res 13A, E-50018 Zaragoza, Spain

[3] Univ Sao Paulo, Dept Food Engn, Fac Zoothechny & Food Engn, Sao Paulo, Brazil

来源：

JOURNAL OF CHROMATOGRAPHY A | 2011年 / 1218卷 / 10期

关键词：

Polyethylene terephthalate; High-density polyethylene; Recycled; Food; Headspace solid microextraction; FOOD-PACKAGING MATERIALS; DEGRADATION PRODUCTS; CONTACT APPLICATIONS; THERMAL-DEGRADATION; PET BOTTLES; CONTAMINANTS; POLY(ETHYLENE-TEREPHTHALATE); EXTRACTION; IDENTIFICATION; PLASTICS;

D O I：

10.1016/j.chroma.2010.12.099

中图分类号：

Q5 [生物化学];

学科分类号：

071010 ; 081704 ;

摘要：

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 mu m 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. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：1319 / 1330

页数：12

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