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IJC-A Vol.47A(07) [July 2008] >


Title: Extraction chromatographic separation of Ga(III) with the high molecular mass liquid cation exchanger SRS-100
Authors: Mandal, Bhabatosh
Ghosh, Niladri
Issue Date: Jul-2008
Publisher: CSIR
IPC CodeInt. Cl. ⁸ B01D15/08
Abstract: A selective method has been developed for the extraction chromatographic separation of Ga(III) with SRS-100 (liquid cation exchanger) coated on silanised silica gel. Its quantitative extraction has been achieved in 2.5 h from 0.1 M acetate buffer (pH 5.5-6.5). 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 Ga(III) has been determined. Breakthrough capacity and preconcentration factor at different pH values have been investigated. The effect of pH on Rf in ion exchange paper chromatography has also been investigated. Ga(III) has been separated from its synthetic binary and multi-component mixtures containing various metal ions as are found in ores and alloy samples. The method effectively permits sequential separation of Ga(III) from synthetic quaternary mixtures containing its congeners Al(III), In(III) and Tl(III). A plausible mechanism for the extraction of Ga(III) is also suggested.
Page(s): 1041-1046
ISSN: 0376-4710
Source:IJC-A Vol.47A(07) [July 2008]

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