Publication Details |
| Category | Text Publication |
| Reference Category | Journals |
| DOI | 10.1016/j.microc.2004.05.007 |
| Title (Primary) | Estimation of ecotoxicological potential of contaminated sediments based on a sequential extraction procedure with supercritical CO2 and subcritical H2O solvents |
| Author | Heltai, G.; Percsich, K.; Halász, G.; Jung, K.; Fekete, I. |
| Journal | Microchemical Journal |
| Year | 2005 |
| Department | OEC; COE |
| Volume | 79 |
| Issue | 1-2 |
| Page From | 231 |
| Page To | 237 |
| Language | englisch |
| Keywords | Heavy metal contamination; Sediment contamination; Sequential extraction; Ecotoxicological testing |
| Abstract | Sediment samples were taken from the Tisza–Szamos area and Gödöllő lake system. A new sequential extraction scheme in a supercritical extractor using supercritical CO2, subcritical H2O, and a subcritical mixture of 90% H2O and 10% CO2 as solvents was employed. This procedure provides relevant information about environmentally mobile heavy metal fractions (water-soluble, bicarbonate-forming) of sediments during a reasonably short time (5 h). The environmental mobility of Zn and Cd was found to be the highest among the sediments involved in these investigations. This mobility represents detectable ecotoxicity, which can be tested with the subcritical water extracts. Performance of pollen tube growth (PTG) test and the ecotoxicological stable isotope metabolic assay (ESIMA) was compared. Potential ecotoxicity of aqueous extracts was reliably detectable by PTG test during a relatively short time (1 day). |
| Persistent UFZ Identifier | https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=3430 |
| Heltai, G., Percsich, K., Halász, G., Jung, K., Fekete, I. (2005): Estimation of ecotoxicological potential of contaminated sediments based on a sequential extraction procedure with supercritical CO2 and subcritical H2O solvents Microchem J. 79 (1-2), 231 - 237 |
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