Surfactant-assisted transport of lead ion through a bulk liquid membrane containing dicyclohexyl-18-crown-6: efficient removal of lead from blood serum and sea water |
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Authors: | Foujan Falaki Farzaneh Shemirani Mojtaba Shamsipur |
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Institution: | 1.Department of Analytical Chemistry, Faculty of Chemistry,University of Tehran,Tehran,Iran;2.Department of Chemistry,Razi University,Kermanshah,Iran |
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Abstract: | The selective and efficient surfactant assisted transport of Pb2+ ions using a bulk liquid membrane composed of dicyclohexyl-18-crown-6, as a highly selective carrier, in chloroform solution is reported. In the presence of 6.0 × 10?2 M P2O7 4? ions and 10?3 M sodium dodecylsulfate, as suitable stripping agent and membrane/receiving phase interface modifier, respectively, in the receiving phase and 2.4 × 10?3 M picric acid, as a counter ion in the source phase, the amount of lead transported across the liquid membrane after 5 h is 100.0 ± 1.1. The designed transport system was successfully applied to the removal of lead from sea water and blood serum samples. |
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