BTES and aldehydes analysis in PET-bottled water in Lebanon

Abstract : The aim of this study was to determine benzene, toluene, ethylbenzene, styrene (BTES), formaldehyde, acetaldehyde and benzaldehyde in Lebanese polyethylene terephthalate (PET)-bottled water. Aldehydes were analysed by high-performance liquid chromatography with ultraviolet-visible detection (HPLC/UV-vis) after 2,4-dinitrophenylhydrazine (DNPH) derivatisation and solid phase extraction (SPE) concentration, whereas headspace trap gas chromatograph-flame ionisation detector (GC/FID) was used for BTES determination. Both methods were validated according to the NF XP 90-210 and showed good linearity ranging from 3 (limit of quantification [LOQ]) to 15 mu g L-1 for BTES and from 20 (LOQ) to 900 mu g L-1 for aldehydes. No quantified contamination with BTES, acetaldehyde and benzaldehyde was determined in all analysed fresh Lebanese PET-bottled waters. Formaldehyde was quantified in 3 of the 15 samples at concentrations lower than the maximum contaminant level set by the US Environmental Protection Agency and the World Health Organisation. The samples' exposure to sunlight during 5 months increases the migration of formaldehyde and acetaldehyde. Similar migration increase was observed when the samples were incubated at 40 degrees C during 10 days.
Type de document :
Article dans une revue
Food Additives & Contaminants Part B - Surveillance, 2012, 5 (3), pp.221-227. 〈10.1080/19393210.2012.698311〉
Liste complète des métadonnées

https://hal.archives-ouvertes.fr/hal-00807476
Contributeur : Agnès Bussy <>
Soumis le : mercredi 3 avril 2013 - 16:03:21
Dernière modification le : vendredi 27 juillet 2018 - 11:18:06

Identifiants

Collections

Citation

L. Al Rayes, C. O. Saliba, A. Ghanem, Jérôme Randon. BTES and aldehydes analysis in PET-bottled water in Lebanon. Food Additives & Contaminants Part B - Surveillance, 2012, 5 (3), pp.221-227. 〈10.1080/19393210.2012.698311〉. 〈hal-00807476〉

Partager

Métriques

Consultations de la notice

329