Chemical extractions to determine metal partitioning to sediments and soils
Herbison, Sarah E.
Loyland, Stacey M.
Clark, Sue B.
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Previously, we have reported on methods for sequential extractions to determine the partitioning of contaminants and stable elements within soils and sediments. Recently, we have explored single step extractions to obtain similar information. Using a well characterized pond sediment, we have applied single step extractions to remove stable metals partitioned as exchangeable metals, those metals associated with iron oxides, and those metals associated with natural organic matter. The results obtained using single extractions will be compared to observations made when a sequential extraction method is employed with the same sediment.