Characterization of pH-fractionated humic acids with respect to their dissociation behaviour
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26310%2F16%3APU117309" target="_blank" >RIV/00216305:26310/16:PU117309 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1007/s11356-015-5932-2" target="_blank" >http://dx.doi.org/10.1007/s11356-015-5932-2</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/s11356-015-5932-2" target="_blank" >10.1007/s11356-015-5932-2</a>
Alternative languages
Result language
angličtina
Original language name
Characterization of pH-fractionated humic acids with respect to their dissociation behaviour
Original language description
Humic acids were divided into several fractions using buffer solutions as extraction agents with different pH values. Two methods of fractionation were used. The first one was subsequent dissolution of bulk humic acids in buffers adjusted to different pH. The second one was sequential dissolution in buffers with increasing pH values. Experimental data were compared with hypothesis of partial solubility of humic acids in aqueous solutions. Behaviour of humic fractions obtained by sequential dissolution, original bulk sample and residual fractions obtained by subsequent dissolution at pH 10 and 12 agrees with the hypothesis. Results demonstrated that regardless the common mechanism, solubility and dissociation degree of various humic fractions may be very different and can be estimated using parameters of the model based on the proposed mechanism. Presented results suggest that dissolving of solid humic acids in water environment is more complex than conventional solubility behaviour of sparingly soluble solids.
Czech name
—
Czech description
—
Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
10403 - Physical chemistry
Result continuities
Project
<a href="/en/project/LO1211" target="_blank" >LO1211: Materials Research Centre at FCH BUT- Sustainability and Development</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2016
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
ISSN
0944-1344
e-ISSN
1614-7499
Volume of the periodical
23
Issue of the periodical within the volume
1
Country of publishing house
DE - GERMANY
Number of pages
10
Pages from-to
7722-7731
UT code for WoS article
000374994600064
EID of the result in the Scopus database
2-s2.0-84953379016