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Bond strength of metal ions in humic gels

By Jana Potočková


This thesis deals with the study of bond strength of Cu2+ ions in humic gels. Two methods of extraction were used during the study, sequential and fractional extractions. During the fractional extraction leaching of copper proceeds in single agents, whereas during the sequential extraction leaching proceeds gradually in all extraction agents. Destilled water, 1M MgCl2, 1M HCl and 0,025M NH4EDTA were applied like extraction reagents. Amounts of Cu2+ ions in leaches after extraction were measured by UV-VIS spectrometry. By using extractions was obtained the fractionation of Cu2+ ions according to bond strength in humic gel

Topics: gels; huminové látky; extraction of copper; kontinuální extrakce; extrakce mědi; gely; humic substances; fractional extraction; sequential extraction; frakční extrakce
Publisher: Vysoké učení technické v Brně. Fakulta chemická
Year: 2011
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