. . . "Siln\u011B kontaminovan\u00E9 lesn\u00ED a orn\u00E9 p\u016Fdy a \u0159\u00ED\u010Dn\u00ED sedimenty z P\u0159\u00EDbramska byly extrahov\u00E1ny deionizovanou vodou, roztokem chloridu v\u00E1penat\u00E9ho, dusi\u010Dnanu amonn\u00E9ho, nebo DTPA. V\u00FDsledky byly diskutov\u00E1ny vzhledem k termodynamick\u00E9 stabilit\u011B form\u011B kovov\u00FDch iont\u016F a jejich p\u0159\u00EDpadn\u00E9 resorpce na zkoumanou p\u016Fdu nebo sediment."@cs . "Mihaljevi\u010D, M." . . "Assessment of single extractions for the determination of mobile forms of metals in highly polluted soils and sediments\u2014Analytical and thermodynamic approaches"@en . "RIV/61388980:_____/07:00094786" . . "NL - Nizozemsko" . "0003-2670" . "Grygar, Tom\u00E1\u0161" . . . "10"^^ . . "602" . . "P(GA526/06/0418), Z(AV0Z40320502), Z(MSM0021620855)" . . . "Assessment of single extractions for the determination of mobile forms of metals in highly polluted soils and sediments\u2014Analytical and thermodynamic approaches" . . "Ettler, V." . "\u0160ebek, O." . "Assessment of single extractions for the determination of mobile forms of metals in highly polluted soils and sediments\u2014Analytical and thermodynamic approaches"@en . "4"^^ . . "Posouzen\u00ED jednokrokov\u00FDch extrakc\u00ED ke stanoven\u00ED mobiln\u00EDch forem kov\u016F ve vysoce zne\u010Di\u0161t\u011Bn\u00FDch p\u016Fd\u00E1ch a sedimentech - analytick\u00FD a termodynamick\u00FD p\u0159\u00EDstup"@cs . "1"^^ . "1" . "Highly polluted forest/tilled soils and stream sediments from a mining and smelting area were subjected to single-extraction procedures to determine the extractable contents of Cd, Cu, Pb, and Zn. The results obtained from four widely used operationally defined single extraction tests were compared. The analytical data were coupled with measurement of the pH and Eh in extracts, mineralogical investigations and thermodynamic modelling using the PHREEQC-2 code. The changes in the pH of the equilibrated suspensions significantly influenced the metal extractabilities, with higher values in the lower pH regions. Although the DTPA procedure generally extracted the highest amounts of metals, it was found to be unsuitable for highly organic acidic forest soils, where anionic metal\u2013DTPA complexes are assumed to be re-adsorbed on the positively charged surfaces of soil organic matter and oxides." . "Analytica Chimica Acta" . "Assessment of single extractions for the determination of mobile forms of metals in highly polluted soils and sediments\u2014Analytical and thermodynamic approaches" . . "131;140" . "410872" . "Highly polluted forest/tilled soils and stream sediments from a mining and smelting area were subjected to single-extraction procedures to determine the extractable contents of Cd, Cu, Pb, and Zn. The results obtained from four widely used operationally defined single extraction tests were compared. The analytical data were coupled with measurement of the pH and Eh in extracts, mineralogical investigations and thermodynamic modelling using the PHREEQC-2 code. The changes in the pH of the equilibrated suspensions significantly influenced the metal extractabilities, with higher values in the lower pH regions. Although the DTPA procedure generally extracted the highest amounts of metals, it was found to be unsuitable for highly organic acidic forest soils, where anionic metal\u2013DTPA complexes are assumed to be re-adsorbed on the positively charged surfaces of soil organic matter and oxides."@en . . "Posouzen\u00ED jednokrokov\u00FDch extrakc\u00ED ke stanoven\u00ED mobiln\u00EDch forem kov\u016F ve vysoce zne\u010Di\u0161t\u011Bn\u00FDch p\u016Fd\u00E1ch a sedimentech - analytick\u00FD a termodynamick\u00FD p\u0159\u00EDstup"@cs . "metal; stream sediment"@en . . "[90C52E7E9FBB]" . . "RIV/61388980:_____/07:00094786!RIV08-AV0-61388980" .