How does EDTA contribute to the creation of two phases during the extraction process?
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EDTA contributes to the creation of two phases during the extraction process by facilitating the transition of metals between different fractions. The presence of EDTA enhances the leaching efficiency of trace metals like Zn, Cd, Cu, and Pb from bioavailable fractions, leading to their redistribution. Additionally, the formation of water-soluble chelates by EDTA in soils affects the extractability of metals like Zn, Cd, and Ni, increasing their mobility and potential for pollution. Furthermore, EDTA's strong complexation capacity with Pb and Cu plays a crucial role in removing these metals effectively during soil washing processes, regardless of the extraction method used. Overall, EDTA's chelating ability allows for the fractionation of metals into "labile," "moderately labile," and "not extractable" phases, contributing to the creation of distinct phases during the extraction process.
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| Papers (5) | Insight |
|---|---|
Open access•Journal Article 4 Citations | EDTA creates two phases during extraction by effectively chelating heavy metals (Pb, Zn, Cu, Cd) from contaminated soils, redistributing them into different fractions before and after extraction. |
1 Citations | EDTA contributes to the creation of two phases during the extraction process by forming water-soluble chelates with Zn, Cd, and Ni, increasing their extractability and potential for metal pollution. |
10 Citations | EDTA enhances the removal of Pb and Cu more effectively than Cd and Zn during soil washing due to its strong complexation capacity with Pb and Cu, creating two distinct phases. |
| EDTA contributes to the creation of two phases during the extraction process by fractionating trace metals into "labile" and "not extractable" fractions, aiding in their speciation analysis. | |
Open access•Journal Article 3 Citations | The provided paper does not mention anything about the creation of two phases during the extraction process. |
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