Migration of styrene and ethylbenzene from virgin and recycled expanded polystyrene containers and discrimination of these two kinds of polystyrene by principal component analysis | Health & Environmental Research Online (HERO)

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Citation
Tags

HERO ID

3491064

Reference Type

Journal Article

Title

Migration of styrene and ethylbenzene from virgin and recycled expanded polystyrene containers and discrimination of these two kinds of polystyrene by principal component analysis

Author(s)

Lin, QB; Song, XC; Fang, H; Wu, YM; Wang, ZW

Year

2017

Is Peer Reviewed?

Journal

Food Additives & Contaminants: Part A, Chemistry, Analysis, Control, Exposure & Risk Assessment
ISSN: 1944-0049
EISSN: 1944-0057

Volume

Issue

Page Numbers

126-132

Language

English

PMID

27801633

DOI

10.1080/19440049.2016.1253875

Web of Science Id

WOS:000392608100005

Abstract

The migration of styrene and ethylbenzene from virgin and recycled expanded polystyrene (EPS) containers into isooctane was investigated using gas chromatography-mass spectrometry (GC-MS). EPS containers were in two-sided contact with isooctane at temperatures of 25 and 40°C. It was shown that recycled EPS gave greater migration ratios compared with virgin EPS, which indicated that styrene and ethylbenzene migrated more easily from recycled EPS. In addition, an analytical method to distinguish between virgin and recycled EPS containers was established by GC-MS followed by principal component analysis (PCA). The relative peak area of the identified compounds was used as input data for PCA. Distinct separation between virgin and recycled EPS was achieved on a score plot. Extension of this method to other plastics may be of great interest for recycled plastics identification.