Abstract
SummaryA 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.
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