Neue Publikationen zur Sb-Isotopie

The isotopes of antimony (Sb) are not as well investigated as many other isotopic systems. Despite that, they are becoming very useful in tracking and understanding the fate of Sb in natural and contaminated systems. The pre-requisite for the success of such studies which will follow in the future is the establishment of the direction and magnitude of isotopic fractionation during various processes. They include purely inorganic processes (e.g., oxidative weathering) or biologically-driven processes (e.g., oxidation of Sb(III) to Sb(V)). In our two recent publications, we explored a number of such processes and showed that they all cause isotopic fractionation. Weathering of stibnite, the most common Sb mineral, causes various fractionation, depending on the final mineral and its formation. Using our data, we may be even able to explain the current isotopic composition of Sb in the global ocean. For more information, see https://doi.org/10.1021/acs.est.3c10271Externer Link and https://doi.org/10.1016/j.chemgeo.2024.122253Externer Link.