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Homogeneity of dispersed brominated flame retardants (HBCD) in polystyrene by LA-ICP-MS and XRF

  • To investigate the release or migration of flame retardants from polypropylene (PP) and polysytrene (PS) samples with a defined content of flame retardants as additives were prepared and used. Therefore a distinct 1,2,5,6,9,10-hexabromocyclododecane HBCD concentration of 1 wt.% in PS resp. a specified bromodiphenylether (BDE-209) of 0.1 wt.% in PP is defined. For the preparation of the samples granular PP or PS are extruded together with the BFR additives. Even the result of this process may lead to homogenous partitions of the BFR additives. So, the distribution of these additives must be proven before using the samples in an experimental setup for weathering studies. In accordance to the regulation of RoHS (2011/65/EU) , where the use of XRF is recommended for the proof of flame retardants in electronic consumer products, we use this method as a reference to the laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS). Therefore we present the correlation of theseTo investigate the release or migration of flame retardants from polypropylene (PP) and polysytrene (PS) samples with a defined content of flame retardants as additives were prepared and used. Therefore a distinct 1,2,5,6,9,10-hexabromocyclododecane HBCD concentration of 1 wt.% in PS resp. a specified bromodiphenylether (BDE-209) of 0.1 wt.% in PP is defined. For the preparation of the samples granular PP or PS are extruded together with the BFR additives. Even the result of this process may lead to homogenous partitions of the BFR additives. So, the distribution of these additives must be proven before using the samples in an experimental setup for weathering studies. In accordance to the regulation of RoHS (2011/65/EU) , where the use of XRF is recommended for the proof of flame retardants in electronic consumer products, we use this method as a reference to the laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS). Therefore we present the correlation of these experiments. The experimental setup for the XRF experiment is like a standard addition: in cavities, which are introduced in the sample plates subsequently, solutions of defined concentration of flame retardants are put in there. According to the idea of standard addition, we get an information of the originating mass fraction of flame retardant in each sample and we can monitor the release and migration of these additives during/after the weathering experiments with high precision. An internal standard of HBCD is added as a marker and can be analyzed after the weathering experiment.zeige mehrzeige weniger

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Metadaten
Autoren/innen:Hassan Iznaguen
Koautoren/innen:Christian Piechotta, Markus Ostermann, Heike Traub
Dokumenttyp:Posterpräsentation
Veröffentlichungsform:Präsentation
Sprache:Englisch
Jahr der Erstveröffentlichung:2017
Organisationseinheit der BAM:1 Analytische Chemie; Referenzmaterialien
1 Analytische Chemie; Referenzmaterialien / 1.1 Anorganische Spurenanalytik
1 Analytische Chemie; Referenzmaterialien / 1.4 Prozessanalytik
1 Analytische Chemie; Referenzmaterialien / 1.8 Umweltanalytik
DDC-Klassifikation:Naturwissenschaften und Mathematik / Chemie / Analytische Chemie
Technik, Medizin, angewandte Wissenschaften / Ingenieurwissenschaften / Sanitär- und Kommunaltechnik; Umwelttechnik
Freie Schlagwörter:BFR; LA-ICP-MS; XRF
Themenfelder/Aktivitätsfelder der BAM:Umwelt
Umwelt / Umweltverhalten von Materialien und Produkten
Analytical Sciences
Analytical Sciences / Oberflächen- und Grenzflächenanalytik
Veranstaltung:8th European Weathering Symposium EWS
Veranstaltungsort:Wien, Austria
Beginndatum der Veranstaltung:20.09.2017
Enddatum der Veranstaltung:22.09.2017
Verfügbarkeit des Dokuments:Datei im Netzwerk der BAM verfügbar ("Closed Access")
Datum der Freischaltung:06.12.2017
Referierte Publikation:Nein