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- Title
Separation of toxic Pb<sup>2+</sup> metal from aqueous solution using strongly acidic cation-exchange resin: analytical applications for the removal of metal ions from pharmaceutical formulation.
- Authors
Naushad, Mu.; ALOthman, Zeid A.
- Abstract
A strongly acidic cation-exchange resin Amberlite IR-120 was successfully used for the separation of toxic metal ions. The distribution coefficient values for various metal ions were performed in different acidic mediums using Amberlite IR-120 resin columns. On the basis of distribution coefficient values, Amberlite IR-120 was found to be selective for Pb2+ ion. A number of important quantitative binary separations of metal ions viz. Cd2+– Pb2+, Hg2+– Pb2+, Cu2+– Pb2+, Zn2+– Pb2+, Cd2+– Al3+, and Mg2+– Al3+ were achieved on the columns of this resin. In order to demonstrate the practical utility of these separations, Mg2+ and Al3+ were determined in commercially available pharmaceutical preparation namely digene using Amberlite IR-120 resin columns. The regeneration studies were carried out which demonstrated a decrease in the recovery of Pb2+ from 88 to 74% after five consecutive cycles.
- Subjects
METAL ions; AQUEOUS solutions; COLUMNS; HEAVY metals; WATER purification; DRUGS
- Publication
Desalination & Water Treatment, 2015, Vol 53, Issue 8, p2158
- ISSN
1944-3994
- Publication type
Article
- DOI
10.1080/19443994.2013.862744