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. © 1978.
CITATION STYLE
Guy, R. D., Chakrabarti, C. L., & McBain, D. C. (1978). An evaluation of extraction techniques for the fractionation of copper and lead in model sediment systems. Water Research, 12(1), 21–24. https://doi.org/10.1016/0043-1354(78)90190-2
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