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Title

Migration and characterisation of nanosilver from food containers by AF4-ICP-MS

AuthorsArtiaga, G.; Ramos, K.; Ramos, Lourdes ; Cámara, C.; Gómez-Gómez, M.
KeywordsFood simulant
Food storage container
Migration
AF4-ICP-MS
Silver nanoparticles
Issue Date2015
CitationFood Chemistry 166: 76-85 (2015)
AbstractIn this work, silver migration from commercial food containers was evaluated according to European Regulation 10/2011. Several experimental parameters affected silver release: food simulant, temperature, exposition time and sampled bag area. Results demonstrated a significant silver nanoparticle (AgNP) migration into aqueous and acidic simulants. The amount of silver migrated increased with storage time and temperature although, in general, silver showed a low tendency to migrate into food simulants (17 ng/g). However, the food simulant did not seem to be a really outstanding variable for long term storage. AF4-ICP MS was used to confirm the presence of AgNPs in the simulants. The low limit of detection achieved (0.4 μg L-1) allowed the identification of AgNPs and their size characterisation (40-60 nm). Finally, scanning electron microscopy/energy-dispersive X-ray analysis suggested a possible transformation of the AgNPs detected in the extracts, due to association with other ligands, such as chlorine and sulphur, present in the original containers.
URIhttp://hdl.handle.net/10261/109485
DOI10.1016/j.foodchem.2014.05.139
Identifiersdoi: 10.1016/j.foodchem.2014.05.139
issn: 1873-7072
Appears in Collections:(IQOG) Artículos
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