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Assessment of soils using pollution indices
Satola, Ondřej ; Pavlovský, Jiří (referee) ; Doležalová Weissmannová, Helena (advisor)
Subject of this diploma thesis is analysis of selected heavy metals in soils which are exposed to long-time cause of contaminants from metallurgical industry in localities Třinec and Ostrava. For assessment of the contamination, indexes for evaluation of soils were chosen. Those indexes are focusing mainly on rate of enrichment of the soils by selected heavy metals and resulting ecological and possibly health risk for human organism. Within every location, 26 samples were extracted, while every sample extract location, were selected to map the level of pollution around metallurgical plants in the most complex way. The analysis of the samples was done by techniques F-AAS and AMA 254 and established metals were mercury, lead, copper, chrome, nickel, manganese and zinc.
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Interaction of triazole terconazole with copper cations.
Bártová, Kateřina ; Jaklová Dytrtová, Jana (advisor) ; Navrátil, Tomáš (referee)
Terconazole is one of the triazole derivatives with an antifungal effect. It is used locally to treat vaginal yeast infections. Terconazole could interact with copper cations in the vagina or uterus of women, who use an intrauterine device releasing copper cations. Other triazole derivatives in complexes with copper cations differ in their properties like toxicity or mobility. Cu2+ can be reduced in the presence of triazoles, which can lead to a Fenton-like reaction and production of free radicals. Thus, the Cu2+ /Cu+ terconazole system can be potentially dangerous. Stoichiometry, fragmentation and stability of forming complexes were studied with tandem mass spectrometry. The Cu2+ /Cu+ terconazole system was measured within pH range from 4 to 7,2, with a concentration ratio of CuCl2 and terconazole 1:5 to 20:1, with water and ethanol as solvents (1:1). Results suggest that terconazole is partially oxidized in the Cu2+ /terconazole system and that this oxidation depends on the pH of a solution. Apart from oxidized and protonated terconazole, other detected ions and complexes were not significantly influenced by pH. The detection of complexes containing Cu+ is alarming because this could correspond with the occurrence of a Fenton-like reaction. Key words Terconazole, copper cations, complexes,...
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Assessment of soils using pollution indices
Satola, Ondřej ; Pavlovský, Jiří (referee) ; Doležalová Weissmannová, Helena (advisor)
Subject of this diploma thesis is analysis of selected heavy metals in soils which are exposed to long-time cause of contaminants from metallurgical industry in localities Třinec and Ostrava. For assessment of the contamination, indexes for evaluation of soils were chosen. Those indexes are focusing mainly on rate of enrichment of the soils by selected heavy metals and resulting ecological and possibly health risk for human organism. Within every location, 26 samples were extracted, while every sample extract location, were selected to map the level of pollution around metallurgical plants in the most complex way. The analysis of the samples was done by techniques F-AAS and AMA 254 and established metals were mercury, lead, copper, chrome, nickel, manganese and zinc.
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