An evaluation of extraction techniques for the fractionation of copper and lead in model sediment systems
| Autor: | R.D. Guy, D.C. McBain, C. L. Chakrabarti |
|---|---|
| Rok vydání: | 1978 |
| Předmět: |
Environmental Engineering
Ecological Modeling Extraction (chemistry) Oxide Sediment chemistry.chemical_element Fractionation Pollution Copper Metal chemistry.chemical_compound chemistry visual_art Environmental chemistry visual_art.visual_art_medium Bromoform Clay minerals Waste Management and Disposal Water Science and Technology Civil and Structural Engineering |
| Zdroj: | Water Research. 12:21-24 |
| ISSN: | 0043-1354 |
| Popis: | Model sediments were used to evaluate four extraction methods for fractionation of metals in sediment: 1. dilute HNO3 (total specifically-adsorbed metal); 2. 1 M NH4Cl (ion-exchangeable); 3. H2O2 (organic); 4. density separation using bromoform. The studies indicated that dilute HNO3 could not remove all the lead from MnO2, that intercomponent interferences prevented 100% removal by H2O2 and NH4Cl, and that density separations could not separate oxide coatings from clay minerals. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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