This HTML5 document contains 47 embedded RDF statements represented using HTML+Microdata notation.

The embedded RDF content will be recognized by any processor of HTML5 Microdata.

Namespace Prefixes

PrefixIRI
dctermshttp://purl.org/dc/terms/
n18http://localhost/temp/predkladatel/
n15http://linked.opendata.cz/resource/domain/vavai/riv/tvurce/
n11http://linked.opendata.cz/ontology/domain/vavai/
n13http://linked.opendata.cz/resource/domain/vavai/zamer/
shttp://schema.org/
n5http://linked.opendata.cz/ontology/domain/vavai/riv/
skoshttp://www.w3.org/2004/02/skos/core#
n14http://linked.opendata.cz/resource/domain/vavai/vysledek/RIV%2F00216305%3A26310%2F07%3APU70240%21RIV08-MSM-26310___/
n2http://linked.opendata.cz/resource/domain/vavai/vysledek/
rdfhttp://www.w3.org/1999/02/22-rdf-syntax-ns#
n10http://linked.opendata.cz/ontology/domain/vavai/riv/klicoveSlovo/
n12http://linked.opendata.cz/ontology/domain/vavai/riv/duvernostUdaju/
xsdhhttp://www.w3.org/2001/XMLSchema#
n16http://linked.opendata.cz/ontology/domain/vavai/riv/jazykVysledku/
n6http://linked.opendata.cz/ontology/domain/vavai/riv/aktivita/
n17http://linked.opendata.cz/ontology/domain/vavai/riv/druhVysledku/
n8http://linked.opendata.cz/ontology/domain/vavai/riv/obor/
n9http://reference.data.gov.uk/id/gregorian-year/

Statements

Subject Item
n2:RIV%2F00216305%3A26310%2F07%3APU70240%21RIV08-MSM-26310___
rdf:type
n11:Vysledek skos:Concept
dcterms:description
The potential of high resolution ultrasonic analysis (HRUS) in humic acid colloidal properties research has been demonstrated. Sodium salts of humic acids from soil and lignite showed similar behaviour, supporting the hypothesis that, at both neutral and alkaline pH, they aggregate from very low concentration. The same conclusion can be reached for solutions at high ionic strength. We tried to apply the same procedure as used for the study of micellization and determination of critical micelle concentration of common surfactants. As expected, our experiments did not show the same break as demonstrated on the HRUS records for sodium dodecyl sulfate, at least in the range of measured concentration (i.e. from 0.001 up to 10 g/L). The colloidal state of humic acids in aqueous solution is very sensitive to the presence of other, both charged and neutral, molecules. Aggregation of humic acids can be disturbed or promoted, depending on the concentration, by electrostatic or other weak interactions with extra Nový pohled na agregační chování huminových kyselin: aplikace vysoce rozslišovací ultrazvukové spektroskopie The potential of high resolution ultrasonic analysis (HRUS) in humic acid colloidal properties research has been demonstrated. Sodium salts of humic acids from soil and lignite showed similar behaviour, supporting the hypothesis that, at both neutral and alkaline pH, they aggregate from very low concentration. The same conclusion can be reached for solutions at high ionic strength. We tried to apply the same procedure as used for the study of micellization and determination of critical micelle concentration of common surfactants. As expected, our experiments did not show the same break as demonstrated on the HRUS records for sodium dodecyl sulfate, at least in the range of measured concentration (i.e. from 0.001 up to 10 g/L). The colloidal state of humic acids in aqueous solution is very sensitive to the presence of other, both charged and neutral, molecules. Aggregation of humic acids can be disturbed or promoted, depending on the concentration, by electrostatic or other weak interactions with extra
dcterms:title
New insights into aggregation and conformational behaviour of humic substances: Application of high resolution ultrasonic spectroscopy New insights into aggregation and conformational behaviour of humic substances: Application of high resolution ultrasonic spectroscopy Nový pohled na agregační chování huminových kyselin: aplikace vysoce rozslišovací ultrazvukové spektroskopie
skos:prefLabel
New insights into aggregation and conformational behaviour of humic substances: Application of high resolution ultrasonic spectroscopy Nový pohled na agregační chování huminových kyselin: aplikace vysoce rozslišovací ultrazvukové spektroskopie New insights into aggregation and conformational behaviour of humic substances: Application of high resolution ultrasonic spectroscopy
skos:notation
RIV/00216305:26310/07:PU70240!RIV08-MSM-26310___
n5:strany
2098-2110
n5:aktivita
n6:Z
n5:aktivity
Z(MSM0021630501)
n5:cisloPeriodika
1
n5:dodaniDat
n9:2008
n5:domaciTvurceVysledku
n15:6514405 n15:4234375 n15:2784408 n15:3637115
n5:druhVysledku
n17:J
n5:duvernostUdaju
n12:S
n5:entitaPredkladatele
n14:predkladatel
n5:idSjednocenehoVysledku
437146
n5:idVysledku
RIV/00216305:26310/07:PU70240
n5:jazykVysledku
n16:eng
n5:klicovaSlova
humic substances, aggregation, high resolution ultrasonic spectroscopy
n5:klicoveSlovo
n10:humic%20substances n10:aggregation n10:high%20resolution%20ultrasonic%20spectroscopy
n5:kodStatuVydavatele
GB - Spojené království Velké Británie a Severního Irska
n5:kontrolniKodProRIV
[AC118E316A19]
n5:nazevZdroje
ORGANIC GEOCHEMISTRY
n5:obor
n8:CF
n5:pocetDomacichTvurcuVysledku
4
n5:pocetTvurcuVysledku
4
n5:rokUplatneniVysledku
n9:2007
n5:svazekPeriodika
38
n5:tvurceVysledku
Šmejkalová, Daniela Pekař, Miloslav Čechlovská, Hana Kučerík, Jiří
n5:zamer
n13:MSM0021630501
s:issn
0146-6380
s:numberOfPages
13
n18:organizacniJednotka
26310