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Distillation‐extraction of styrene migrating from polystyrene containers to foods by gas chromatography
Author(s) -
LAU OIWAH,
LUNG MANTUNG,
MOK CHUEN SHING
Publication year - 1995
Publication title -
international journal of food science and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.831
H-Index - 96
eISSN - 1365-2621
pISSN - 0950-5423
DOI - 10.1111/j.1365-2621.1995.tb01387.x
Subject(s) - styrene , polystyrene , chromatography , extraction (chemistry) , distillation , gas chromatography , hexane , chemistry , organic chemistry , copolymer , polymer
Summary A simple, accurate and sensitive gas‐liquid chromatographic method has been developed for the determination of styrene migrating from polystyrene containers into foodstuffs. an apparatus for the extraction of styrene was designed for the purpose, based on the BP apparatus for the determination of volatile oils. Styrene was extracted from foods by distillation with concurrent extraction from the distillate by n ‐hexane. Extraction was complete in 35 min. Hexane extracts were analysed by GC‐FID using a glass column with durene as internal standard. Styrene levels in containers were from 1.7 to 192 μg g −1 and in foods from 0.013 to 0.13 μg g −1 .