Light Scattering Techniques as a Key for Accessing of the Molecular Weight and Size of Humic Substances Originating from Different Source Materials
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26310%2F21%3APU141740" target="_blank" >RIV/00216305:26310/21:PU141740 - isvavai.cz</a>
Result on the web
—
DOI - Digital Object Identifier
—
Alternative languages
Result language
angličtina
Original language name
Light Scattering Techniques as a Key for Accessing of the Molecular Weight and Size of Humic Substances Originating from Different Source Materials
Original language description
Abstract. This contribution is focused on the utilization of light scattering techniques (dynamic, static and electrophoretic) for purposes of an in-depth study on the aggregation, conformation changes and colloidal stability of soluble fractions of humic substances in aqueous solutions. For these purposes, the behaviour of various soluble humic fractions (mainly humic and fulvic) was studied and compared. The heterogeneity of humic molecules in their aqueous solutions was firstly necessary to decrease before their subsequent instrumental light scattering characterization. For these purposes, the methods of size exclusion chromatography and asymmetric flow-field flow fractionation were used. The obtained results showed similar basic structural features in the case of the individual humic acids isolated from different source materials as well as between the various studied fulvic acids. Different aggregation behaviour was observed in the case of the commertial lignohumate sample.
Czech name
—
Czech description
—
Classification
Type
O - Miscellaneous
CEP classification
—
OECD FORD branch
10403 - Physical chemistry
Result continuities
Project
<a href="/en/project/GJ20-28208Y" target="_blank" >GJ20-28208Y: Understanding the effect of biochar amendment on stability of soil organic matter–from interdisciplinary methodology to molecular-level interpretation</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů