[PDF] Identification Of The Co-localisation Of Hg With Se And Fe By ...

[Back] [Session BG1.7] EGU22-8265 https://doi.org/10.5194/egusphere-egu22-8265 EGU General Assembly 2022 © Author(s) 2022. This work is distributed under the Creative Commons Attribution 4.0 License. Identification of the co-localisation of Hg with Se and Fe by NanoSIMS in sperm whale liver. Lhiam Paton1, Maria Angels Subirana2, Dirk Schaumlöffel2, and Jörg Feldmann1 Lhiam Paton et al. Lhiam Paton1, Maria Angels Subirana2, Dirk Schaumlöffel2, and Jörg Feldmann1

• 1University of Graz, Institute of Chemistry , Analytical Chemistry, Austria
• 2CNRS, Université de Pau et des Pays de l'Adour, E2S UPPA, Institut des Sciences Analytiques et de Physico-Chimie pour l'Environnement et les Matériaux, UMR 5254, 64000 Pau, France.

• 1University of Graz, Institute of Chemistry , Analytical Chemistry, Austria
• 2CNRS, Université de Pau et des Pays de l'Adour, E2S UPPA, Institut des Sciences Analytiques et de Physico-Chimie pour l'Environnement et les Matériaux, UMR 5254, 64000 Pau, France.

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The biological pathway by which MeHg undergoes detoxifications in some mammals and birds has yet to be fully elucidated. The current understanding is that HgSe nanoparticles (NPs) are formed in vivo as the end point of a detoxification process. Presented, is a contribution to the body of work already present in the field based on recent insights into the existence of HgSe NPs after Hg was detected by NanoSIMS, for the first time, in the liver of a sperm whale that was beached in Ardersier, Scotland. Analysis by NanoSIMS found heterogenous distribution and co-localisation of Hg with other elements including Se and Fe, giving a possible insight into the complex biological mechanism that ends in tiemannite NPs being stored in the livers of whales.

How to cite: Paton, L., Angels Subirana, M., Schaumlöffel, D., and Feldmann, J.: Identification of the co-localisation of Hg with Se and Fe by NanoSIMS in sperm whale liver. , EGU General Assembly 2022, Vienna, Austria, 23–27 May 2022, EGU22-8265, https://doi.org/10.5194/egusphere-egu22-8265, 2022.

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