Chemical Structure of Humic Acids in Colloidal Systems
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26310%2F06%3APU56295" target="_blank" >RIV/00216305:26310/06:PU56295 - 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
Chemical Structure of Humic Acids in Colloidal Systems
Original language description
Humic acids play important role in natural soil and water chemistry. They can form stable complexes with heavy metals which influences their toxicity in environment. Because humic acids are not a chemical individuum but mixture of various compounds theirstructure is very complex. The acidity of humic substances is caused mainly by carboxylic and phenolic groups. The total acidity (including all acidic functional groups) is often considered as binding capacity of humic acid in chemical interaction with metal ions. Titration methods are usually utilized for determination of content of various functional groups. Several samples of humic acids were used in this contribution: IHSS Leonardite, commercial Fluka and three samples with various ash contents ( extracted from South-Moravian lignite). In determination of total acidity the local minima were observed on some titration curves. Results obtained for individual samples are compared and possible explanation of observed local minima is dis
Czech name
Chemická struktura huminových kyselin v koloidních systémech
Czech description
Je studována a diskutována struktura a obsah kyselých funkčních skupin v závislosti na koloidní formě huminových kyselin (tuhé částice, sol, gel).
Classification
Type
D - Article in proceedings
CEP classification
CF - Physical chemistry and theoretical chemistry
OECD FORD branch
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Result continuities
Project
<a href="/en/project/GP104%2F02%2FD036" target="_blank" >GP104/02/D036: Complexation processes in system with characteristic content of humic substances</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2006
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
Humic Substances in Ecosystems 6
ISBN
80-89128-16-5
ISSN
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e-ISSN
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Number of pages
3
Pages from-to
81-83
Publisher name
Edičné stredisko VÚPOP Bratislava
Place of publication
Bratislava
Event location
Račkova Dolina
Event date
Jun 19, 2005
Type of event by nationality
EUR - Evropská akce
UT code for WoS article
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