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National Repository of Grey Literature 3 records found  Search took 0.00 seconds. 
Adsorption of metal ions on humic acids
 Pokorná, Markéta ; Mgr. Martina Havelcová, Ph.D (referee) ; Klučáková, Martina (advisor)
The Bachelor´s thesis deals with humic acids and their ability to bind metal ions on their surface. Humic acids are generally aromatic polycyclic compounds, which contain phenolic and carboxylic functional groups on their sidechains. Because of their functional groups, they are able to form stable complex compounds. In this thesis, the adsorption of lead ions was studied by electroanalytical method called flow-through coulometry.
Detailed record
Determination of chlorides in biological material and its significance
 KOROUSOVÁ, Iveta
Significant changes in concentration of minerals and acid-base balance can be expected in critically ill patients. Chlorides are one of the analytes to be determined. Currently the measurement of chlorides in serum and blood samples is predominantly performed by potentiometry with an ion-selective chloride electrode. During the determination of chloride concentration some interferences by other substances in the blood can be found. The most significant of them are interferences of bicarbonates. Since last year, 260 blood samples of patients from the Intensive Care Unit of the 1st Department of Medicine in Faculty Hospital in Pilsen were collected in the Institute of Clinical Biochemistry and Hematology in Faculty Hospital in Pilsen. Concentration of chlorides in biological material was determined by the commonly used methods. The results were compared and the possible interferences of bicarbonates were explained. Basic method for determination of chlorides is coulometry where bicarbonates don´t interfere. During the measurement of chlorides on the ABL835 FLEX analyser (Radiometer) no interferences were detected. During the measurement of chlorides on the GEM Premier 4000 (Instrumentation Laboratory) and Cobas 8000 analysers (Roche) interferences of bicarbonates were found. Nevertheless, the effect of bicarbonates was not clinically significant in interpreting the results.
Detailed record
Adsorption of metal ions on humic acids
 Pokorná, Markéta ; Mgr. Martina Havelcová, Ph.D (referee) ; Klučáková, Martina (advisor)
The Bachelor´s thesis deals with humic acids and their ability to bind metal ions on their surface. Humic acids are generally aromatic polycyclic compounds, which contain phenolic and carboxylic functional groups on their sidechains. Because of their functional groups, they are able to form stable complex compounds. In this thesis, the adsorption of lead ions was studied by electroanalytical method called flow-through coulometry.
Detailed record

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