About: Determination of molecular weights and correlations with the E4/E6 ratio

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An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Molecular weights Mn and Mw and ratio of absorbances at wavelengths 465 and 665 nm (E4/E6) of humic acids prepared from coal, oxyhumolite, lignite, peat, and chernozem from different localities in the Czech Republic were measured. Some samples were prepared from raw materials after their oxidation by nitric acid. It was used to determine molecular weights; they were determined by the UV/VIS spectrometry. Experimental results confirmed that the E4/E6 ratio decrease with increasing molecular weights, determined by SEC (size-exclusion chromatography). The E4/E6 ratios and molecular weights were further compared with other basic characteristics - total acidity, carboxyl groups content, carbon and oxygen content. Molecular weights Mn and Mw and ratio of absorbances at wavelengths 465 and 665 nm (E4/E6) of humic acids prepared from coal, oxyhumolite, lignite, peat, and chernozem from different localities in the Czech Republic were measured. Some samples were prepared from raw materials after their oxidation by nitric acid. It was used to determine molecular weights; they were determined by the UV/VIS spectrometry. Experimental results confirmed that the E4/E6 ratio decrease with increasing molecular weights, determined by SEC (size-exclusion chromatography). The E4/E6 ratios and molecular weights were further compared with other basic characteristics - total acidity, carboxyl groups content, carbon and oxygen content. (en)
Title	Determination of molecular weights and correlations with the E4/E6 ratio Determination of molecular weights and correlations with the E4/E6 ratio (en)
skos:prefLabel	Determination of molecular weights and correlations with the E4/E6 ratio Determination of molecular weights and correlations with the E4/E6 ratio (en)
skos:notation	RIV/60077344:_____/11:00371083!RIV12-AV0-60077344
http://linked.open...avai/predkladatel	Biologické centrum AV ČR, v. v. i.
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(1M0554), Z(AV0Z60660521)
http://linked.open...vai/riv/dodaniDat	2012
http://linked.open...aciTvurceVysledku	Novák, František
http://linked.open.../riv/druhVysledku	C - Kapitola v knize
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Biologické centrum AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	193848
http://linked.open...ai/riv/idVysledku	RIV/60077344:_____/11:00371083
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	determination; molecular weights; E4/E6 ratio (en)
http://linked.open.../riv/klicoveSlovo	E4/E6 ratio molecular weights determination
http://linked.open...ontrolniKodProRIV	[CB9CC3CDB962]
http://linked.open...i/riv/mistoVydani	New York
http://linked.open...vEdiceCisloSvazku	Chemistry Research and Applications
http://linked.open...i/riv/nazevZdroje	Humic Acids from Raw Materials of the Czech Republic
http://linked.open...in/vavai/riv/obor	CB
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...v/pocetStranKnihy	133 (xsd:int)
http://linked.open...cetTvurcuVysledku	3 (xsd:int)
http://linked.open...vavai/riv/projekt	Advanced Remedial Technologies and Processes
http://linked.open...UplatneniVysledku	2011
http://linked.open...iv/tvurceVysledku	Madronová, L. Novák, František Janoš, P.
http://linked.open...n/vavai/riv/zamer	Relationships between the structure and function of decomposer food web in soil
number of pages	10 (xsd:int)
http://purl.org/ne...btex#hasPublisher	Nova Science Publisher
https://schema.org/isbn	978-1-61668-965-0
is http://linked.open...avai/riv/vysledek of	Determination of molecular weights and correlations with the E4/E6 ratio Determination of molecular weights and correlations with the E4/E6 ratio

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