Soil humic acids may favour the persistence of hexavalent chromium in soil
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| Titel: | Soil humic acids may favour the persistence of hexavalent chromium in soil |
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| Autoren: | Leita, L., Margon, A., Pastrello, A., Arcon, I., Contin, M., Mosetti, D. |
| Quelle: | Environmental pollution 157, 1862-1866 (2009). doi:10.1016/j.envpol.2009.01.020 |
| Verlagsinformationen: | Elsevier Science |
| Publikationsjahr: | 2009 |
| Bestand: | DESY Publication Database (PUBDB) |
| Schlagwörter: | info:eu-repo/classification/ddc/333.7, Absorptiometry, Photon: methods, Chromium: analysis, Chromium: chemistry, Ecotoxicology: methods, Electrochemistry: methods, Humic Substances, Hydrogen-Ion Concentration, Soil: analysis, Soil Pollutants: analysis, Soil Pollutants: chemistry, Spectrophotometry, Ultraviolet: methods, Time Factors, Soil, Soil Pollutants, chromium hexavalent ion, Chromium |
| Geographisches Schlagwort: | DE |
| Beschreibung: | The interaction between hexavalent chromium Cr(VI), as K(2)CrO(4), and standard humic acids (HAs) in bulk solution was studied using three complementary analytical methods: UV-Visible spectroscopy, X-ray absorption spectroscopy and differential pulse stripping voltammetry. The observed UV-Vis and X-ray absorption spectra showed that, under our experimental conditions, HAs did not induce reduction of Cr(VI) to its trivalent chemical form. The interaction between Cr(VI) and HAs has rather led to the formation of Cr(VI)-HAs micelles via supramolecular chemical processes. The reported results could contribute towards explaining the relative persistence of ecotoxic hexavalent chromium in soils. |
| Publikationsart: | article in journal/newspaper |
| Sprache: | English |
| Relation: | info:eu-repo/semantics/altIdentifier/issn/1878-2450; info:eu-repo/semantics/altIdentifier/pmid/pmid:19231051; info:eu-repo/semantics/altIdentifier/issn/0269-7491; info:eu-repo/semantics/altIdentifier/issn/1873-6424; info:eu-repo/semantics/altIdentifier/wos/WOS:000266191200018; info:eu-repo/semantics/altIdentifier/issn/0013-9327 |
| Verfügbarkeit: | https://bib-pubdb1.desy.de/record/87836 https://bib-pubdb1.desy.de/search?p=id:%22PHPPUBDB-9565%22 |
| Rights: | info:eu-repo/semantics/openAccess |
| Dokumentencode: | edsbas.F82DB48E |
| Datenbank: | BASE |
Nájsť tento článok vo Web of Science | Abstract: | The interaction between hexavalent chromium Cr(VI), as K(2)CrO(4), and standard humic acids (HAs) in bulk solution was studied using three complementary analytical methods: UV-Visible spectroscopy, X-ray absorption spectroscopy and differential pulse stripping voltammetry. The observed UV-Vis and X-ray absorption spectra showed that, under our experimental conditions, HAs did not induce reduction of Cr(VI) to its trivalent chemical form. The interaction between Cr(VI) and HAs has rather led to the formation of Cr(VI)-HAs micelles via supramolecular chemical processes. The reported results could contribute towards explaining the relative persistence of ecotoxic hexavalent chromium in soils. |
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