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| Description
| - V práci jsou shrnuty výsledky kritického posouzení aplikace gelově chromatografické varianty Hummel-Dreyerovy metody při studiu komplexace Co(II), Eu(III), a Th(IV) s huminovou kyselinou. Byly nalezeny podmínky pro korektní použití metody, zvláště pro účinnou separaci složek a zachování komplexační rovnováhy. Metoda poskytuje výsledky srovnatelné s častěji používanými metodami, musí být však dodržena jistá opatrnost. Nezbytnou podmínkou je účinné oddělení komplexu kovu s huminovou kyselinou. Při vyhledávání podmínek pro účinnou separaci se osvědčily speciační výpočty metodou PHREEQC. Je třeba potlačit tzv. %22non size-exclusion effects%22 a propočítat jejich příspěvek k nejistotě stanovení interakčních konstant. Zvláště sorpce se může, zvláště u kovů s vyšší valencí, stát vemi významným faktorem. (cs)
- This work summarizes results on critical examination of an application of a gel chromatographic variant of Hummel - Dreyer method for studying of complexation of Co(II), Eu(III), and Th(IV) with humic acid. Conditions for the correct use of the method were evaluated, mainly for effective separation and equilibrium preservation. The method gives results comparable to other more frequently used methods, but some precautions must be taken. The effective separation of metal-humic acid complex from low molecular weight metal species is a must. In search of separation conditions, speciation calculations (by program PHREEQC) proved to be a very useful tool. So called %22non size-exclusion effects%22 must be diminished and their contribution to the combined uncertainty of interaction constants values thoroughly calculated. Mainly sorption may constitute a very important factor, mainly in the case of metals of higher valency.
- This work summarizes results on critical examination of an application of a gel chromatographic variant of Hummel - Dreyer method for studying of complexation of Co(II), Eu(III), and Th(IV) with humic acid. Conditions for the correct use of the method were evaluated, mainly for effective separation and equilibrium preservation. The method gives results comparable to other more frequently used methods, but some precautions must be taken. The effective separation of metal-humic acid complex from low molecular weight metal species is a must. In search of separation conditions, speciation calculations (by program PHREEQC) proved to be a very useful tool. So called %22non size-exclusion effects%22 must be diminished and their contribution to the combined uncertainty of interaction constants values thoroughly calculated. Mainly sorption may constitute a very important factor, mainly in the case of metals of higher valency. (en)
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| Title
| - Applicability Limitations of Hummel-Dreyer Method for Radionuclides - Humic Acids Equilibria Studies: Complexation of Cobalt(II), Europium(III) and Thorium(IV) with Aldrich Humic Acid
- Omezení použitelnosti Hummel-Dreyerovy metody při studiu rovnováh radionuklidů s huminovými kyselinami: Komplexace Co(II), Eu(III) a TH(IV) s huminovou kyselinou Aldrich (cs)
- Applicability Limitations of Hummel-Dreyer Method for Radionuclides - Humic Acids Equilibria Studies: Complexation of Cobalt(II), Europium(III) and Thorium(IV) with Aldrich Humic Acid (en)
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| skos:prefLabel
| - Applicability Limitations of Hummel-Dreyer Method for Radionuclides - Humic Acids Equilibria Studies: Complexation of Cobalt(II), Europium(III) and Thorium(IV) with Aldrich Humic Acid
- Omezení použitelnosti Hummel-Dreyerovy metody při studiu rovnováh radionuklidů s huminovými kyselinami: Komplexace Co(II), Eu(III) a TH(IV) s huminovou kyselinou Aldrich (cs)
- Applicability Limitations of Hummel-Dreyer Method for Radionuclides - Humic Acids Equilibria Studies: Complexation of Cobalt(II), Europium(III) and Thorium(IV) with Aldrich Humic Acid (en)
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| skos:notation
| - RIV/68407700:21340/05:04112249!RIV06-MSM-21340___
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| http://linked.open.../vavai/riv/strany
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| http://linked.open...avai/riv/aktivita
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| http://linked.open...avai/riv/aktivity
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| http://linked.open...vai/riv/dodaniDat
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| http://linked.open...aciTvurceVysledku
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| http://linked.open.../riv/druhVysledku
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| http://linked.open...iv/duvernostUdaju
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| http://linked.open...titaPredkladatele
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| http://linked.open...dnocenehoVysledku
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| http://linked.open...ai/riv/idVysledku
| - RIV/68407700:21340/05:04112249
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| http://linked.open...riv/jazykVysledku
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| http://linked.open.../riv/klicovaSlova
| - Hummel-Dreyer method; cobalt; complexation equilibria; europium; gel chromatography; humic acid; thorium (en)
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| http://linked.open.../riv/klicoveSlovo
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| http://linked.open...ontrolniKodProRIV
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| http://linked.open...v/mistoKonaniAkce
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| http://linked.open...i/riv/mistoVydani
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| http://linked.open...i/riv/nazevZdroje
| - Proceedings of Workshop 2005 - Part A,B
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| http://linked.open...in/vavai/riv/obor
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| http://linked.open...ichTvurcuVysledku
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| http://linked.open...cetTvurcuVysledku
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| http://linked.open...UplatneniVysledku
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| http://linked.open...iv/tvurceVysledku
| - Beneš, Petr
- Drtinová, Barbora
- Vopálka, Dušan
- Cabalka, M.
- Dolanský, Jiří
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| http://linked.open...vavai/riv/typAkce
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| http://linked.open.../riv/zahajeniAkce
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| http://linked.open...n/vavai/riv/zamer
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| number of pages
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| http://purl.org/ne...btex#hasPublisher
| - České vysoké učení technické v Praze
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| https://schema.org/isbn
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| http://localhost/t...ganizacniJednotka
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