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Projects / Programmes source: ARIS

Analizna kemija okolja in bioloških sistemov (Slovene)

Periods
January 1, 1999 - December 31, 2003
Research activity

Code Science Field Subfield
1.08.00  Natural sciences and mathematics  Control and care of the environment   
1.04.00  Natural sciences and mathematics  Chemistry   

Code Science Field
P305  Natural sciences and mathematics  Environmental chemistry 
P300  Natural sciences and mathematics  Analytical chemistry 
B260  Biomedical sciences  Hydrobiology, marine biology, aquatic ecology, limnology 
B270  Biomedical sciences  Plant ecology 
B560  Biomedical sciences  Urology, nephrology 
P400  Natural sciences and mathematics  Physical chemistry 
Evaluation (rules)
source: COBISS
Researchers (11)
no. Code Name and surname Research area Role Period No. of publicationsNo. of publications
1.  16413  PhD Tjaša Bantan Polak  Chemistry  Researcher  2001 - 2003  34 
2.  12315  PhD Ester Heath  Control and care of the environment  Researcher  2001 - 2003  603 
3.  18708  Barbara Korc    Researcher  2001 - 2002 
4.  22316  PhD Blaž Kralj  Control and care of the environment  Researcher  2002 - 2003  19 
5.  08314  PhD Radmila Milačič  Control and care of the environment  Head  2001 - 2003  802 
6.  20652  PhD Tadeja Milivojevič Nemanič  Chemistry  Researcher  2001 - 2003  22 
7.  08946  Silva Perko    Researcher  2001 - 2003  51 
8.  05258  PhD Arkadije Popović  Chemistry  Researcher  2001 - 2003  81 
9.  19896  PhD Urška Repinc  Chemistry  Researcher  2001 - 2002  119 
10.  18289  PhD Peter Svete  Chemistry  Researcher  2001 - 2002  31 
11.  18359  PhD Janez Ščančar  Control and care of the environment  Researcher  2001 - 2003  677 
Organisations (1)
no. Code Research organisation City Registration number No. of publicationsNo. of publications
1.  0106  Jožef Stefan Institute  Ljubljana  5051606000  90,724 
Abstract
In the investigations of cycling, transformations, biological availability and activity, as well as the toxicity of microelements in the environment, it is necessary to determine the total element concentration and also chemical forms of elements. For this purpose the reliable analytical procedures will be developed for the determination of total concentrations of Al, Cu, Zn, Fe and Rb in bone samples, serum and plasma and fresh and spent CAPD fluids. The parameters will be optimised for sample digestion and determination of elements by optical spectrometry methods. Special attention will be paid to assure the quality of analysis (standard reference materials, intercomparison analysis with other analytical techniques). The procedures will be also developed for speciation of Zn, Cu and Rb in samples of spent CAPD fluids. On the basis of the results the mechanisms of depletion or accumulation of these elements in dialysis patients will be predicted. In the field of metal speciation chemical species of elements will be separated by microultrafiltration, gel and ion exchange chromatography. The procedures will be developed for determination of chemical species of Al in serum samples. The knowledge about chemical species in serum will help in understanding the mechanisms and transport of this toxic metal in renal and Alzheimer's patients. Al species in plant sap will be investigated as well. With the analytical techniques developed the uptake, kinetics and transformation of various Al species in plants will be investigated to find out which are the most toxic Al species to plants. The influence of Zn, Cd and Pb in the environment as a consequence of the industrial activities will be investigated by applying sequential extraction procedures of soil samples from contaminated area from the Mežica valley. In the water-soluble fraction the speciation of elements will be performed. On the basis of the results the uptake of some chemical species of Zn, Cd and Pb in plants will be investigated. In the field of organic analytical chemistry we will study forms and distribution of persistent organic chemicals (POPs), their biodegradability and bioaccumulation. For environmental pollution control we will investigate selected biota (leachens, mussels) as bioindicator. We will continue with in vitro biodegradation investigation of saturated aliphatic and 4- and 5-rings polyaromatic hydrocarbons from petroleum products carried out in aqueous media by various bacterial cultures. On the basis of the identified metabolites the biodegradation pathways will be proposed. The ecotoxicity of the biodegradation products will be also tested. The status in the Slovene marine ecosystem of toxic organic compounds originate from antifouling paints (organotins, triazine, herbicides) and petrochemicals (PAH) will be established. For gas chromatographic/mass spectrometric analysis of POPs in various natural matrices specific analytical procedures will be developed and validated by standard reference materials and results compared with the intercomparison tests. Knudsen Cell Mass Spectrometry (KCMS) was used in order to study the evaporation and/or atomisation properties of inorganic substances. Thermochemical data obtained by the method are of extreme importance for computation of chemical equilibrium during incineration processes of waste material. This makes possible to evaluate the relative concentration of pollutant species and their emission into the environment during such process.
Most important scientific results Final report
Most important socioeconomically and culturally relevant results Final report
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