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Retention Behavior of Metal Ions on Tri-n-Butyl Phosphate and Tri-n-Butyl Amine-Impregnated Silica Gel G Layers: Quantitative Separation of Lead from Other Metal Ions and Synthetic Alloys

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Summary

The retention behavior of 40 metal ions has been studied on tri-n-butyl phosphate (TBP) and tri-n-butylamine (TBA)-impregnated silica gel G layers in aqueous acid solutions including the complexing acids and butanol-nitric acid mixtures in varying ratios as mobile phases. The mechanism of migration is explained in terms of solubility of the metal salt, adsorption, complex formation, and precipitation of the ions in the network of the adsorbent. The effect of pk1 of the complexing acids used as the mobile phase and also of the metal complexes formed on the RF values of metal ions is discussed. The effect of the mobile phase composition on the migration behavior of these ions has also been studied. Twenty percent TBP-and TBA-impregnated silica gel G layers are found the most suitable for the separation of metal ions. The quantitative separation of lead from other metal ions and synthetic alloys such as architectural bronze and leaded bronze has been carried out.

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Authors and Affiliations

  1. Department of Chemistry, School of Sciences, IFTM University, 244102, Delhi Road, Moradabad, India

    Surendra Dutt Sharma

  2. Manav Rachna College of Education, Faridabad, India

    Charu Sharma

Authors
  1. Surendra Dutt Sharma
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  2. Charu Sharma
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Correspondence to Surendra Dutt Sharma.

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Sharma, S.D., Sharma, C. Retention Behavior of Metal Ions on Tri-n-Butyl Phosphate and Tri-n-Butyl Amine-Impregnated Silica Gel G Layers: Quantitative Separation of Lead from Other Metal Ions and Synthetic Alloys. JPC-J Planar Chromat 32, 157–163 (2019). https://doi.org/10.1556/1006.2019.32.2.12

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  • DOI: https://doi.org/10.1556/1006.2019.32.2.12

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