Publication detail

The Impact of Methylation of IHSS Humic Acids on the Reactivity Studied by Diffusion Techniques

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

English Title

The Impact of Methylation of IHSS Humic Acids on the Reactivity Studied by Diffusion Techniques

Type

abstract

Language

en

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.

English 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

Released

01.09.2014

Location

Ioannina

Pages from

152

Pages to

153

Pages count

2

Documents

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",
  annote="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.",
  booktitle="Natural Organic Matter: Structure-Dynamics Innovative Applications",
  chapter="109259",
  howpublished="electronic, physical medium",
  year="2014",
  month="september",
  pages="152--153",
  type="abstract"
}