Environmental analytical chemistry
The role of trace elements and their impact to the environment and living organisms depend not only on their total concentration but also on chemical forms in which they are present. Our research is oriented to the development of new analytical procedures for speciation of elements like Al, Cr, Sn, Br, Pt, Ru, Ni, Zn etc. in environmental, food and biological samples. In speciation analysis, their concentration is determined by the use of isotope dilution inductively coupled plasma mass spectrometry technique.
Furthermore, we apply “in-house” synthesized and commercially available stable isotope enriched tracers to the investigations on the fate and role of trace elements in the environment and living organisms or to follow the species transformation during the sequence of steps in analysis. By precise measuring of the isotopic ratios of heavier elements we trace their transport in the environment and follow the geographical origin of food products. The research activities are focused also to the development of analytical methods for sizing and quantification of metal nanoparticles that are used in nanoremediation, medicine and food and to the development of speciation techniques and bio-imaging methods to determine the spatial distribution of target metallospecies in μ-sections of biological tissues.