The Impact of Methylation of IHSS Humic Acids on the Reactivity Studied by Diffusion Techniques
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26310%2F14%3APU110347" target="_blank" >RIV/00216305:26310/14:PU110347 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
The Impact of Methylation of IHSS Humic Acids on the Reactivity Studied by Diffusion Techniques
Original language description
Non-stationary diffusion processes and the diffusion cell techniques of basic organic dyes (Methylene Blue and Rhodamine 6G) was studied in supported hydrogel matrix with different content of humic acids (standard samples of International Humic Substances Society ? Leonardite). A simple spectrophotometric method was utilized in the in situ measurement of dye concentration at different distances from the boundary by non stationary diffusion in cuvettes. The rate of interactions of humic acids in diffusion cells was compared by fundamental diffusion parameters such as effective diffusion coefficients, the lag time and the binding capacity of humic acids. The effect of modification (methylation) of humic acids was studied by both diffusion techniques. Carboxylic groups became occupied by methyl groups during methylation, so the sorption capacity of modified sample should be lower. The results confirmed the strong immobilization of chosen diffusion probes caused by their sorption on humic
Czech name
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Czech description
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Classification
Type
O - Miscellaneous
CEP classification
CF - Physical chemistry and theoretical chemistry
OECD FORD branch
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Result continuities
Project
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Continuities
S - Specificky vyzkum na vysokych skolach
Others
Publication year
2014
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů