Migration of plasticizersphthalates, bisphenol A and alkylphenols from plastic containers and evaluation of risk
Résumé
This study is aimed to investigate the potential migration of plasticizers, plastic components and additives and alkylphenols from several water plastic bottles. Compounds under study were phthalates (dimethyl phthalate, di-n-butyl phthalate, benzylbutyl phthalate, bis(2-ethylhexyl) phthalate), bis(2-ethylhexyl) adipate, octylphenol, 4-nonylphenol and bisphenol A. Polycarbonate (PC), high density polyethylene (HDPE), low density polyethylene (LDPE), polyethylene terephthalate (PET) and polystyrene (PS) plastics used in the water bottling sector were tested using three kinds of total or specific migration tests: i) standard method UNE-EN ISO 177; ii) ultrasonic forced extraction extraction and iii) standard method UNE-UNE-EN 1186EN 13130-1. In addition, bottled waters of different plastic material were analyzed to determine the potential migration of plasticizers and alkylphenolstarget compounds in real conditions. In all cases, samples were solid phase extracted using Oasis HLB 200 mg cartridges and analyzed using gas chromatography coupled to mass spectrometry (GC-MS) in a scan acquisition mode. Bisphenol A and 4-nonylphenol were detected in incubated samples, indicating that migration from food plastics can occur at the experimental conditions tested. Total Daily Intake wais calculated according to the levels detected in bottled water and the assessment of the consumers' risk was evaluated taking into consideration toxicological and legislated values.
Origine : Fichiers produits par l'(les) auteur(s)
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