Chemická struktura huminových kyselin v koloidních systémech

Kód výsledku v 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>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Chemical Structure of Humic Acids in Colloidal Systems

Popis výsledku v původním jazyce

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

Název v anglickém jazyce

Chemical Structure of Humic Acids in Colloidal Systems

Popis výsledku anglicky

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

Druh

D - Stať ve sborníku

CEP obor

CF - Fyzikální chemie a teoretická chemie

OECD FORD obor

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Projekt

<a href="/cs/project/GP104%2F02%2FD036" target="_blank" >GP104/02/D036: Komplexotvorné procesy v systémech s charakteristickým obsahem huminových látek</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2006

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Humic Substances in Ecosystems 6

ISBN

80-89128-16-5

ISSN

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e-ISSN

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Počet stran výsledku

3

Strana od-do

81-83

Název nakladatele

Edičné stredisko VÚPOP Bratislava

Místo vydání

Bratislava

Místo konání akce

Račkova Dolina

Datum konání akce

19. 6. 2005

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

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