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Preparation of reference materials for the determination of RoHS-relevant flame retardants in styrenic polymers

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Abstract

Reference materials for the analysis of polybrominated diphenyl ethers, polybrominated biphenyls and other common brominated flame retardants (FR) in styrenic polymers were prepared to suit the demands of actual restriction of the use of certain hazardous substances in electrical and electronic equipment analytics. Three methods of preparation were employed, viz. pellet forming, dissolution/vaporisation and extrusion, whereby extrusion proved to be the most suitable method. For extrusion, three procedures of pre-mixing were investigated: the polymers were either mixed with FR powder, FR solutions or FR concentrates that were taken from waste industrial polymers. The latter procedure proved to be most appropriate in terms of analyte concentration, predictability and recovery. The homogeneity of the samples, as well as the chemical and thermal long-term stabilities, was investigated. The result was an optimised method to prepare a suitable reference material for laboratory use.

 

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Acknowledgements

The authors gratefully acknowledge the support of Peter Igel, Manfred Weller and Uwe Reißer from the machine shop of this department for the construction of the extruder and their expert assistance in technical troubleshooting.

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Authors and Affiliations

  1. Inorganic Chemistry, Department of Chemistry and Pharmacy, University of Erlangen-Nuremberg, Egerlandstr. 1, 91058, Erlangen, Germany

    Manfred Pöhlein, Raquel Urpi Bertran, Marion Wolf & Rudi van Eldik

Authors
  1. Manfred Pöhlein
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  2. Raquel Urpi Bertran
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  3. Marion Wolf
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  4. Rudi van Eldik
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Corresponding author

Correspondence to Rudi van Eldik.

Electronic Supplementary Materials

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Long-term stability of flame retarded polymer E19 (PDF 224 kb)

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Pöhlein, M., Urpi Bertran, R., Wolf, M. et al. Preparation of reference materials for the determination of RoHS-relevant flame retardants in styrenic polymers. Anal Bioanal Chem 394, 583–595 (2009). https://doi.org/10.1007/s00216-009-2732-x

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  • DOI: https://doi.org/10.1007/s00216-009-2732-x

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