Inorganic Trace Analysis

 (Anfrage per Mail)

 

Quantitative determination of major/minor elements besides traces in materials is of techno-economic as well as societal importance.  Our expertise is in the solution of complex and unique analytical challenges, in the context of qualitative and quantitative chemical analysis. Be it regarding state-of-the-art or future materials, bio-compatible matrices, or environmental samples, our decennial expertise offers full quality and statitical robustness.

/documents/56094/15136340/Inorganic+Analysis.jpg/2f8141c4-cf49-4522-8d34-bd5331b90cfa?t=1606137069087

 

The development and deployment of consistent advanced analytical methods for the determination of critical traces  in raw materials, e.g.  rare earth elements (REE) in electronic waste, is necessary for the creation of a data repository. Main techniques operated in this research context are the following ones:

  • Sample preparation procedures by different mill-steps such as shredder
  • Pre-analysis information’s or semiquantitative analysis by x-Ray fluorescence spectrometry (WD-XRF). In some cases direct quantitative analysis is possible, e.g. steels.
  • Sample digestion by microwave or high pressure asher (HPA) assisted
  • Element measurement’s (ppm-%) by optical inductively coupled plasma spectrometry (ICP-OES)
  • Element measurement’s (ppb-ppm) by inductively coupled mass spectrometry (QQQ-ICP-MS) with different reaction modes such as O2, H2, NH3 and He
  • Non-metal determinations such as O, N , C, S  and H for many matrices by combustion methods
  • Expert lab in method development for inorganic element and ion analysis

References

Muñoz, M.; Haag, R.; Figi, R.; Schreiner, C.; Zaumanis, M.; Cavalli, M. C.; Poulikakos, L. D.; Heeb, N. V. Environmental impact of rejuvenators in asphalt mixtures containing high reclaimed asphalt content. Road Mater. Pavement Des. 2021. https://doi.org/10.1080/14680629.2021.1891129
Detailed Record
Arabi-Hashemi, A.; Maeder, X.; Figi, R.; Schreiner, C.; Griffiths, S.; Leinenbach, C. 3D magnetic patterning in additive manufacturing via site-specific in-situ alloy modification. Appl. Mater. Today 2020, 18, 100512 (9 pp.). https://doi.org/10.1016/j.apmt.2019.100512
Detailed Record
Hadian, A.; Zamani, C.; Schreiner, C.; Figi, R.; Clemens, F. J. Influence of carbon content and processing treatment of metallic binder on the outgassing and sintering of NbC based cemented carbide. Ceram. Int. 2020, 46 (18), 28422-28431. https://doi.org/10.1016/j.ceramint.2020.07.347
Detailed Record
Hammer, T.; Netkueakul, W.; Zolliker, P.; Schreiner, C.; Figi, R.; Braun, O.; Wang, J. Composites of epoxy and graphene-related materials: nanostructure characterization and release quantification. NanoImpact 2020, 20, 100266 (11 pp.). https://doi.org/10.1016/j.impact.2020.100266
Detailed Record
Le Dantec, M.; Güniat, L.; Leistner, M.; Figi, R.; Bleiner, D.; Leparoux, M.; Hoffmann, P. Impact of oxygen content in powders on the morphology of the laser molten tracks in preparation for additive manufacturing of silicon. Powder Technol. 2020, 361, 704-710. https://doi.org/10.1016/j.powtec.2019.11.052
Detailed Record