Details

Autor(en) / Beteiligte

• Hildebrandt, L.
• Fischer, M.
• Klein, O.
• Zimmermann, T.
• Fensky, F.
• Siems, A.
• Zonderman, A.
• Hengstmann, E.
• Kirchgeorg, T.
• Pröfrock, D.

Titel

An analytical strategy for challenging members of the microplastic family: Particles from anti-corrosion coatings

Ist Teil von

• Journal of hazardous materials, 2024-05, Vol.470, p.134173-134173, Article 134173

Ort / Verlag

Netherlands: Elsevier B.V

Erscheinungsjahr

2024

Link zum Volltext

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• Potentially hazardous particles from paints and functional coatings are an overlooked fraction of microplastic (MP) pollution since their accurate identification and quantification in environmental samples remains difficult. We have applied the most relevant techniques from the field of microplastic analysis for their suitability to chemically characterize anti-corrosion coatings containing a variety of polymer binders (LDIR, Raman and FTIR spectroscopy, Py-GC/MS) and inorganic additives (ICP-MS/MS). We present the basis of a possible toolbox to study the release and fate of coating particles in the (marine) environment. Our results indicate that, due to material properties, spectroscopic methods alone appear to be unsuitable for quantification of coating/paint particles and underestimate their environmental abundance. ICP-MS/MS and an optimized Py-GC/MS approach in combination with multivariate statistics enables a straightforward comparison of the multi-elemental and organic additive fingerprints of paint particles. The approach can improve the identification of unknown particles in environmental samples by an assignment to different typically used coating types. In future, this approach may facilitate allocation of emission sources of different environmental paint/coating particles. Indeed, future work will be required to tackle various remaining analytical challenges, such as optimized particle extraction/separation of environmental coating particles. [Display omitted] •Toolbox to study the release and fate of coating particles in the environment.•Combination of spectroscopic (LDIR, FTIR, Raman) and spectrometric methods (Py-GC/MS, ICP-MS).•Spectroscopic methods underestimate the abundance of coating particles.•Py-GC/MS combined with statistical analysis valuable for identification of coatings.•Multi-elemental analysis identified ecotoxicologically relevant metal(oid)s.