%0 conference lecture %@ %A Zimmermann, T., Klein, O., Reese, A., Irrgeher, J., Pröfrock, D. %D 2020 %J 53rd Annual Conference of the German Society for Mass Spectrometry DGMS including 27th ICP-MS User´s Meeting %T Boron and strontium isotope ratio analysis of the Rhine river – tracer for anthropogenic boron emissions? %U %X The combination of Sr and B isotopic compositions can be used to distinguish different inputs into a complex river system, and can therefore provide a better insight into possible sources and distribution of anthropogenic B inputs.