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Extraction-spectrophotometric determination of thallium in high-purity indium

Z Marczenko1, H Kałowska, M Mojski

  • 1Department of Analytical Chemistry Warsaw Technical University Warsaw, Poland.

Talanta
|January 1, 1974
PubMed

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Metal ions can be separated from one another by complexation with organic ligands–the chelating agent– to form uncharged chelates. Here, the chelating agent must contain hydrophobic groups and behave as a weak acid, losing a proton to bind with the metal. Since most organic ligands used in this process are insoluble or undergo oxidation in the aqueous phase, the chelating agent is initially added to the organic phase and extracted into the aqueous phase. The metal-ligand complex is formed in...