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.





RusaLCA: Nanoremediation of water from small waste water treatment plants and reuse of water and soild remains for local needs

In this EU funded project nanotechnology is applied for the additional cleaning of water originating from small-scale wastewater treatment plants. The aim is to re-use remediated water by consumers and thus to reduce the consumption of water obtained from natural sources. Another important aim is to establish a protocol on re-cycling of solid waste obtained from small-scale wastewater treatment plants, and from nano-remediation tanks in different types of composites in the construction industry.

Toxic metals and organometallic compounds in the terrestrial environment

This project investigates the occurrence, toxicity, transformation and mobility of chromium and organotin compounds in sewage sludge and landfill leachates by applying hyphenated chromatographic and mass spectrometric techniques. To follow the species transformation and methylation processes in sewage sludge and landfill leachates enriched stable isotopes are used.



                      PEETERS, Kelly, ISKRA, Jernej, ZULIANI, Tea, ŠČANČAR, Janez, MILAČIČ, Radmila. The micro-scale synthesis of 117Sn-enriched tributyltin chloride and its characterization by GC-ICP-MS and NMR techniques. Chemosphere, 2014, 107, 386-392.
    PEETERS, Kelly, ZULIANI, Tea, ŠČANČAR, Janez, MILAČIČ, Radmila. The use of isotopically enriched tin tracers to follow the transformation of organotin compounds in landfill leachate. Water Research, 2014, 53, 297-309.
    PEETERS, Kelly, LESPES, Gaëtane, MILAČIČ, Radmila, ŠČANČAR, Janez. Adsorption and degradation processes of tributyltin and trimethyltin in landfill leachates treated with iron nanoparticles. Environmental Research, 2015, 142, 511-521.
    NOVOTNIK, Breda, ZULIANI, Tea, MARTINČIČ, Anže, ŠČANČAR, Janez, MILAČIČ, Radmila. Preparation of Cr(VI) and Cr(III) isotopic spike solutions from 50Cr and 53Cr enriched oxides without the use of oxidizing and/or reducing agents. Talanta, 2012, 99, 83-90.
ZULIANI, Tea, ŠČANČAR, Janez, MILAČIČ, Radmila. The use of stable isotopes for Cr(VI) determination in silty-clay soil solution. Analytical and Bioanalytical Chemistry, 2013, 405, 7231-7240.
    PRIJIČ, Sara, PROSEN, Lara, ČEMAŽAR, Maja, ŠČANČAR, Janez, ROMIH, Rok, LAVRENČAK, Jaka, BREGAR, Vladimir Boštjan, CÖR, Andrej, KRŽAN, Mojca, ŽNIDARŠIČ, Andrej, SERŠA, Gregor. Surface modified magnetic nanoparticles for immuno-gene therapy of murine mammary adenocarcinoma. Biomaterials, 2012, 33, 4379-4391.
      More publications

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