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Národní úložiště šedé literatury Nalezeno 4 záznamů.  Hledání trvalo 0.01 vteřin. 
Utilization of spectroscopical methods in the study on interaction of natural organic matter with organic ions
 Prisažný, Adam ; Smilek, Jiří (oponent) ; Sedláček, Petr (vedoucí práce)
This bachelor thesis deals with the interaction of humic acids with organic ions and effect of chemical modification of humic acids on this interaction. Rhodamine 6G was used as a model organic ion. The interaction were studied by spectroscopy methods. Results showed that the bond between the reactants was not primarily dependent on carboxylic functional groups of humic acids. Fluorescence experiments indicated static quenching mechanism and differential UV-VIS spectroscopy demonstrated the existence of - interactions.
Úplný záznam
Structural aspects of interaction between humic substances and charged organic xenobiotics
 Prisažný, Adam ; Smilek, Jiří (oponent) ; Sedláček, Petr (vedoucí práce)
This diploma thesis was focused on studying the interaction of humic substances with ionic organic xenobiotics and its structural aspects. The method was chosen from my bachelor thesis, steady-state fluorescence spectroscopy, which is suitable for substances with weak fluorescence. The results showed that the interaction between humic acids and representatives of ionic organic xenobiotics (Septonex) was reflected in fluorescence quenching of humic acids and the shift of emission maximum to lower wavelength, hypsochromic (blue) shift. From the measurement results, we can assume that the interaction that is formed between the aromatic structures in humic acids and Septonex could be -cation interaction.
Úplný záznam
Structural aspects of interaction between humic substances and charged organic xenobiotics
 Prisažný, Adam ; Smilek, Jiří (oponent) ; Sedláček, Petr (vedoucí práce)
This diploma thesis was focused on studying the interaction of humic substances with ionic organic xenobiotics and its structural aspects. The method was chosen from my bachelor thesis, steady-state fluorescence spectroscopy, which is suitable for substances with weak fluorescence. The results showed that the interaction between humic acids and representatives of ionic organic xenobiotics (Septonex) was reflected in fluorescence quenching of humic acids and the shift of emission maximum to lower wavelength, hypsochromic (blue) shift. From the measurement results, we can assume that the interaction that is formed between the aromatic structures in humic acids and Septonex could be -cation interaction.
Úplný záznam
Utilization of spectroscopical methods in the study on interaction of natural organic matter with organic ions
 Prisažný, Adam ; Smilek, Jiří (oponent) ; Sedláček, Petr (vedoucí práce)
This bachelor thesis deals with the interaction of humic acids with organic ions and effect of chemical modification of humic acids on this interaction. Rhodamine 6G was used as a model organic ion. The interaction were studied by spectroscopy methods. Results showed that the bond between the reactants was not primarily dependent on carboxylic functional groups of humic acids. Fluorescence experiments indicated static quenching mechanism and differential UV-VIS spectroscopy demonstrated the existence of - interactions.
Úplný záznam

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