Separation of speciation forms of (potentially toxic) elements using different types of extraction techniques in environmental 1200-PROJ52

The aim of the course / the project is to become familiar with the creation and development of analytical procedures, their implementation in speciation analysis, and to become acquainted with publications on a selected element occurring in surface waters (at various concentration levels) in various speciation forms (mainly in various oxidation states), i.e. As, Te, Cr and Tl, performing a number of experiments on their own, describing them and drawing relevant conclusions from them.
It will be necessary to
- indicate the toxicity / eco-toxicity of selected elements and their forms (contents in the environment, xenobiotic and toxic contents)
- learn about anthropogenization of surface waters
- critically evaluate the literature data
- trace the stage of designing analytical procedures based on literature data
- know the properties of individual speciation forms, indicating the differences in their chemistry (the basis for their separation)
- learn about separation techniques
- learn about environmental sample preparation techniques (i.e. filtration, extraction, mineralization).
- learn about the solutions used to limit speciation changes after sample collection
- become familiar with the practical use of validation parameters (i.e. linearity range, detection limit, quantification limit)
- validate using various spectral techniques, i.e. ICP-MS and HG-ICP-OES.
An important element of the project will be conducting independent experiments (preparing standards, performing extraction, determining elements in samples after extraction). The final task is to propose an analytical procedure for separating a selected element present in water in two different oxidation states using solid phase extraction. Alternatively, the application aspect will be implemented.
Discussion of the results and their critical assessment will be the basis for achieving this goal.