"3"^^ . "[23747F57E065]" . "De Nobili, M." . "RIV/00027006:_____/04:676" . "Contin, M." . "2004-09-04+02:00"^^ . . "1"^^ . . "Coupled ICP-AES-SEC study of Pb and Zn complexation in long-term contaminated soil"@en . "Freiburg, Germany" . . "Freiburg, Germany" . "1"^^ . . . . . "Sdru\u017Een\u00E1 ICP-AES-SEC studie komplexace Pb a Zn v dlouhodob\u011B kontaminovan\u00FDch p\u016Fd\u00E1ch"@cs . "Coupled ICP-AES-SEC study of Pb and Zn complexation in long-term contaminated soil" . "Coupled ICP-AES-SEC study of Pb and Zn complexation in long-term contaminated soil"@en . . . "The complexation and mobilization potential of Pb and Zn by humic acids (HA) from soil and brown coal was tested in soils from long-term contaminated and non-contaminated sites close to a lead smelter. The molecular weight distribution of HA was evaluated by HPLC-SEC. HA from Leonardite showed a lower apparent molecular weight (MW) in comparison to HA extracted from arable and grassland soils. The capacity of heavy metal complexation by HA fractions of different molecular weights was evaluated by means of coupled ICP-AES-SEC. HA originating from brown coal complexed Zn better than the autoctonous HA. Molecular weights fractions relevant for metal-complexing were found in the range of 2.5-5.0 kDa where HA of brown coal exhibited their major binding capacity. HA of grassland soil moderately complexed Zn, whereas HA of the arable contaminated soil showed only a small ability to complex Zn. HA strongly complexed Pb, particularly the HA of grassland soil whose complexing ability exceeded even that of bro" . . "EUROSOIL 2004" . "Albert-Ludwigs-Universitat Freiburg, Germany" . . . "RIV/00027006:_____/04:676!RIV08-MZE-00027006" . "heavy metals; microbial biomass; respiratory activity; humic acids; HPLC-SEC"@en . . "558928" . "M\u00FChlbachov\u00E1, Gabriela" . "0;0" . "Coupled ICP-AES-SEC study of Pb and Zn complexation in long-term contaminated soil" . "Potenci\u00E1l komplexace a mobilizece Pb a Zn huminov\u00FDmi kyselinami (HA) poch\u00E1zej\u00EDc\u00EDmi z p\u016Fdy a hn\u011Bd\u00E9ho uhl\u00ED (oxyhumolity) byl testov\u00E1n na nekontaminovan\u00FDch a dlouhodob\u011B kontaminovan\u00FDch p\u016Fd\u00E1ch z bl\u00EDzkosti kovohut\u011B zpracov\u00E1vaj\u00EDc\u00ED olovo. Distribuce molekulov\u00FDch hmotnost\u00ED HA byla stanovena HPLC-SEC. HA z oxyhumolit\u016F m\u011Bla evidentn\u011B ni\u017E\u0161\u00ED molekulov\u00E9 hmotnosti (MW) ve srovn\u00E1n\u00ED s HA extrahovanou z trvale zatravn\u011Bn\u00FDch a orn\u00FDch p\u016Fd. Schopnost komplexace kov\u016F huminov\u00FDmi kyselinami o r\u016Fzn\u00FDch molekulov\u00FDch hmotnostech byla stanovena sdru\u017Eenou metodou ICP-AES-SEC. HA poch\u00E1zej\u00EDc\u00ED z oxyhumolitu komplexovaly Zn l\u00E9pe ne\u017E p\u016Fvodn\u00ED HA nach\u00E1zej\u00EDc\u00ED se v p\u016Fd\u00E1ch. Molekulov\u00E9 frakce, kter\u00E9 nejv\u00EDce komplexovaly kovy se pohybovaly v rozsahu 2.5-5.0 kDa. Ha poch\u00E1zej\u00EDc\u00ED ze zatravn\u011Bn\u00FDch p\u016Fd komplexovaly Zn ve st\u0159edn\u00ED m\u00ED\u0159e, zat\u00EDmco HA z orn\u00FDch p\u016Fd m\u011Bly pouze malou schopnost komplexovat Zn. Huminov\u00E9 kyseliny v\u00FDznamn\u011B komplexovaly Pb, zvl\u00E1\u0161t\u011B Ha poch\u00E1zej\u00EDc\u00ED ze zatravn\u011Bn\u00FDch p\u016Fd, kter\u00E9 p\u0159es\u00E1hly i komplexa\u010Dn\u00ED schopnosti z hn\u011Bd\u00E9ho uhl\u00ED. Pro z"@cs . . . "The complexation and mobilization potential of Pb and Zn by humic acids (HA) from soil and brown coal was tested in soils from long-term contaminated and non-contaminated sites close to a lead smelter. The molecular weight distribution of HA was evaluated by HPLC-SEC. HA from Leonardite showed a lower apparent molecular weight (MW) in comparison to HA extracted from arable and grassland soils. The capacity of heavy metal complexation by HA fractions of different molecular weights was evaluated by means of coupled ICP-AES-SEC. HA originating from brown coal complexed Zn better than the autoctonous HA. Molecular weights fractions relevant for metal-complexing were found in the range of 2.5-5.0 kDa where HA of brown coal exhibited their major binding capacity. HA of grassland soil moderately complexed Zn, whereas HA of the arable contaminated soil showed only a small ability to complex Zn. HA strongly complexed Pb, particularly the HA of grassland soil whose complexing ability exceeded even that of bro"@en . . . . "Sdru\u017Een\u00E1 ICP-AES-SEC studie komplexace Pb a Zn v dlouhodob\u011B kontaminovan\u00FDch p\u016Fd\u00E1ch"@cs . "P(QD1256)" .