Titel
The leaching of phthalates from PVC can be determined with an infinite sink approach
Abstract
Polyvinyl chloride (PVC) is the third most used polymer for plastic products in the European Union (+NO/ CH) and contains the highest amounts of additives, especially phthalic acid esters (phthalates). Leaching kinetics of additives from (micro-) plastics into aqueous environments are highly relevant for environmental risk assessment and modelling of the fluxes of plastics and its associated additives. Investigating the leaching of phthalates into aqueous environments in batch experiments is challenging due to their low solubility and high hydrophobicity and there are no standard methods to study release processes. Here we describe an infinite sink method to investigate the leaching of phthalates from PVC into the aqueous phase. Spiking and leaching experiments using bis(2-ethylhexyl) phthalate as a model phthalate enabled the validation and evaluation of the designed infinite sink method. The developed method offers: • a low-cost and simple approach to investigate leaching of phthalates from PVC into aqueous environments • the use of a high-surface activated carbon powder as an infinite sink • a tool to elucidate the transport fluxes of plastics and additives
Stichwort
ReleasePlasticiserMicroplasticsAquatic environmentGC–MS
Objekt-Typ
Sprache
Englisch [eng]
Persistent identifier
Erschienen in
Titel
MethodsX
Band
6
ISSN
2215-0161
Erscheinungsdatum
2019
Seitenanfang
2729
Seitenende
2734
Publication
Elsevier BV
Erscheinungsdatum
2019
Zugänglichkeit
Rechteangabe
© 2019 The Author(s)

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