期刊
DESALINATION AND WATER TREATMENT
卷 53, 期 8, 页码 2158-2166出版社
DESALINATION PUBL
DOI: 10.1080/19443994.2013.862744
关键词
Metal ions; Cation-exchange resin; Amberlite IR-120; Pharmaceutical formulation; Separations
资金
- King Saud University, Deanship of Scientific Research, College of Science Research Center
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.
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