Formaldehyde migration in aqueous extracts from paper and cardboard food packaging materials in Turkey.

摘要: Migration of formaldehyde to aqueous extracts from paper and cardboard food packaging materials was determined by an ultraviolet visible-spectrophotometric method at 410 nm. Intraday interday precision the method, expressed as coefficient variation, varied between 1.5 4.4% 7 8.8%, respectively. The limit quantification 0.28 mg kg−1 for in extracts. recovery over 90% two different concentration levels applied migration 31 collected sector, intended contact, such tea filters, hot water pouches folding boxes. results were detection 0.23 mg/kg 40 mg kg−1 evaluated according relevant directives.