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Mustafina A, Elistratova J, Burilov A, et al. Cloud point extraction of lanthanide(III) ions via use of Triton X-100 without and with water-soluble calixarenes as added chelating agents. Talanta. 2006;68(3):863-8doi: 10.1016/j.talanta.2005.06.011.
Mustafina, A., Elistratova, J., Burilov, A., Knyazeva, I., Zairov, R., Amirov, R., Solovieva, S., & Konovalov, A. (2006). Cloud point extraction of lanthanide(III) ions via use of Triton X-100 without and with water-soluble calixarenes as added chelating agents. Talanta, 68(3), 863-8. https://doi.org/10.1016/j.talanta.2005.06.011
Mustafina, Asiya, et al. "Cloud point extraction of lanthanide(III) ions via use of Triton X-100 without and with water-soluble calixarenes as added chelating agents." Talanta vol. 68,3 (2006): 863-8. doi: https://doi.org/10.1016/j.talanta.2005.06.011
Mustafina A, Elistratova J, Burilov A, Knyazeva I, Zairov R, Amirov R, Solovieva S, Konovalov A. Cloud point extraction of lanthanide(III) ions via use of Triton X-100 without and with water-soluble calixarenes as added chelating agents. Talanta. 2006 Jan 15;68(3):863-8. doi: 10.1016/j.talanta.2005.06.011. PMID: 18970402.
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Talanta. 2006 Jan 15;68(3):863-8. doi: 10.1016/j.talanta.2005.06.011.

Cloud point extraction of lanthanide(III) ions via use of Triton X-100 without and with water-soluble calixarenes as added chelating agents.

Talanta

Asiya Mustafina, Julia Elistratova, Alexander Burilov, Irina Knyazeva, Rustem Zairov, Rustem Amirov, Svetlana Solovieva, Alexander Konovalov

Affiliations

  1. Kazan Scientific Center of the Russian Academy of Sciences, A.E. Arbuzov Institute of Organic and Physical Chemistry, Arbusov Str. 8, Kazan, Russia. [email protected]

PMID: 18970402 DOI: 10.1016/j.talanta.2005.06.011

Abstract

The use of water-soluble calixarenes: p-sulfonato thiacalixarene (ST), tetra-sulfonatomethylated calix[4]resorcinarene (SR), calix[4]resorcinarene phosphonic acid (PhR) as chelating agents in cloud point extraction (CPE) of La(III), Gd(III) and Yb(III) ions using Triton X-100 as non-ionic surfactant is introduced. The data obtained indicate that both complexation ability and structure of calixarenes govern the extraction efficiency of lanthanides. In particular ST and SR, forming 1:1 lanthanide complexes with similar stability in aqueous media, exhibit different extractability when used as chelating agents in CPE. First synthesized PhR was found to be the most efficient chelating agent exhibiting pH-dependent selectivity within La(III), Gd(III) and Yb(III) in CPE.

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