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SMILEK, J. KLUČÁKOVÁ, M. SEDLÁČEK, P. KALINA, M.
Original Title
The Impact of Methylation of IHSS Humic Acids on the Reactivity Studied by Diffusion Techniques
Type
abstract
Language
English
Original Abstract
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 acids.
Keywords
IHSS humic acids, diffusion techniques, methylation, organic dyes, reactivity, interaction
Authors
SMILEK, J.; KLUČÁKOVÁ, M.; SEDLÁČEK, P.; KALINA, M.
Released
1. 9. 2014
Location
Ioannina
Pages from
152
Pages to
153
Pages count
2
BibTex
@misc{BUT109259, author="Jiří {Smilek} and Martina {Klučáková} and Petr {Sedláček} and Michal {Kalina}", title="The Impact of Methylation of IHSS Humic Acids on the Reactivity Studied by Diffusion Techniques", booktitle="Natural Organic Matter: Structure-Dynamics Innovative Applications", year="2014", edition="1", pages="152--153", address="Ioannina", note="abstract" }