Comparison between stability constants of cadmium and lead complexes with humic substances of different molecular weight isolated from Baltic Sea water
The complexation of cadmium and lead with humic substances was studied using differential pulse anodic stripping voltammetry and a standard addition technique. The titration was done for humic substances of different molecular weight that had been isolated from seawater and subsequently redissolved...
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Elsevier
2000-12-01
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| Series: | Oceanologia |
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| Online Access: | http://www.iopan.gda.pl/oceanologia/42_4.html#A4 |
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doaj-67456fa126f541efa0d8a2f246ac90952020-11-24T21:23:19ZengElsevierOceanologia0078-32342000-12-01424473482Comparison between stability constants of cadmium and lead complexes with humic substances of different molecular weight isolated from Baltic Sea waterWaldemar GrzybowskiThe complexation of cadmium and lead with humic substances was studied using differential pulse anodic stripping voltammetry and a standard addition technique. The titration was done for humic substances of different molecular weight that had been isolated from seawater and subsequently redissolved in organic-free seawater. The different molecular weight fractions were obtained by ultrafiltration using 1000 D (Dalton), 5000 D and 10 000 D pore size filters. Comparison of the calculated stability constants suggests that the strengths of lead complexes in the analysed fractions are similar and that cadmium is complexed by the fraction smaller than 1000 D.http://www.iopan.gda.pl/oceanologia/42_4.html#A4Humic SubstancesComplexationSeawaterHeavy Metals |
| collection |
DOAJ |
| language |
English |
| format |
Article |
| sources |
DOAJ |
| author |
Waldemar Grzybowski |
| spellingShingle |
Waldemar Grzybowski Comparison between stability constants of cadmium and lead complexes with humic substances of different molecular weight isolated from Baltic Sea water Oceanologia Humic Substances Complexation Seawater Heavy Metals |
| author_facet |
Waldemar Grzybowski |
| author_sort |
Waldemar Grzybowski |
| title |
Comparison between stability constants of cadmium and lead complexes with humic substances of different molecular weight isolated from Baltic Sea water |
| title_short |
Comparison between stability constants of cadmium and lead complexes with humic substances of different molecular weight isolated from Baltic Sea water |
| title_full |
Comparison between stability constants of cadmium and lead complexes with humic substances of different molecular weight isolated from Baltic Sea water |
| title_fullStr |
Comparison between stability constants of cadmium and lead complexes with humic substances of different molecular weight isolated from Baltic Sea water |
| title_full_unstemmed |
Comparison between stability constants of cadmium and lead complexes with humic substances of different molecular weight isolated from Baltic Sea water |
| title_sort |
comparison between stability constants of cadmium and lead complexes with humic substances of different molecular weight isolated from baltic sea water |
| publisher |
Elsevier |
| series |
Oceanologia |
| issn |
0078-3234 |
| publishDate |
2000-12-01 |
| description |
The complexation of cadmium and lead with humic substances was studied using differential pulse anodic stripping voltammetry and a standard addition technique. The titration was done for humic substances of different molecular weight that had been isolated from seawater and subsequently redissolved in organic-free seawater. The different molecular weight fractions were obtained by ultrafiltration using 1000 D (Dalton), 5000 D and 10 000 D pore size filters. Comparison of the calculated stability constants suggests that the strengths of lead complexes in the analysed fractions are similar and that cadmium is complexed by the fraction smaller than 1000 D. |
| topic |
Humic Substances Complexation Seawater Heavy Metals |
| url |
http://www.iopan.gda.pl/oceanologia/42_4.html#A4 |
| work_keys_str_mv |
AT waldemargrzybowski comparisonbetweenstabilityconstantsofcadmiumandleadcomplexeswithhumicsubstancesofdifferentmolecularweightisolatedfrombalticseawater |
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1725992129698725888 |