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IJC-A Vol.48A(05) [May 2009] >


Title: Extraction chromatographic method of preconcentration and separation of cadmium(II) with high molecular mass liquid cation exchanger, Versatic 10
Authors: Mandal, B
Ghosh, N
Keywords: Analytical chemistry
Chromatography
Ion exchanger
Cation exchanger
Liquid cation exchanger
Cadmium
Versatic 10
Extraction chromatography
Issue Date: May-2009
Publisher: CSIR
IPC CodeInt. Cl.8 B01D15/04; B01D15/08; B01J39/00; G01N30/02
Abstract: A selective method has been developed for the extraction chromatographic separation of Cd(II) with Versatic 10 coated on silanised silica gel. The quantitative extraction has been achieved from 0.1M acetate buffer at the optimum pH of 6.0-7.5. The effects of pH, flow-rate and stripping agents on extraction and elution have been investigated. Exchange capacity of the prepared exchanger at different temperatures with respect to Cd(II) has been determined. Cd(II) has been separated from synthetic binary and multi-component mixtures containing various metal ions associated with it in ores and alloy samples. The method effectively permits sequential separation of Cd(II) from synthetic quaternary mixture containing its congeners, Cu(II), Sn(II), Hg(II), Cu(II), Sn(II) and Bi(III), of the same analytical group. The method is found effective for removal and recovery of Cd(II) from industrial waste and standard alloy samples following its preconcentration on the column. A plausible mechanism for the extraction of Cd(II) has been suggested.
Page(s): 668-671
ISSN: 0376-4710
Source:IJC-A Vol.48A(05) [May 2009]

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