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- Title
Separation and preconcentration of La<sup>3+</sup>, Ce<sup>3+</sup> and Y<sup>3+</sup> using calix[4]resorcinarene impregnated on polymeric support.
- Authors
Gok, Cem; Seyhan, Serap; Merdivan, Melek; Yurdakoc, Muruvvet
- Abstract
A procedure is proposed for separation and preconcentration of lanthanium, cerium and yttrium using octacarboxymethyl-C-methylcalix [4]resorcinarene impregnated onto a polymeric matrix, Amberlite XAD-16. The optimization process was carried out using 23 factorial design and three variables (pH, concentration of metal ion, sorption flow rate) were regarded as factors. For Ce3+ extraction, the variance analysis revealed that pH and concentration of Ce3+ was statistically significant. However, for La3+ and Y3+ pH was significant only. The precision of the method (%RSD) was 2.27 for La3+, 1.97 for Ce3+ and 2.01 for Y3+ at 1 µg mL−1 for ten replicate analyses. The preconcentration factors of La3+, Ce3+ and Y3+ were 125, 83 and 100 respectively. The robustness of this procedure is demonstrated by the recovery achieved for determination of La3+, Ce3+ and Y3+ in the presence of several cations. The procedure was satisfactorily applied to the separation of La3+, Ce3+ and Y3+ from each other and also from common actinides such as UO22+ and Th4+ by sequential acidic elution system.
- Subjects
MATHEMATICAL optimization; HYDROGEN-ion concentration; METAL ions; RARE earth metals; YTTRIUM; SEPARATION (Technology); POLYMERIC composites
- Publication
Microchimica Acta, 2007, Vol 157, Issue 1/2, p13
- ISSN
0026-3672
- Publication type
Article
- DOI
10.1007/s00604-006-0646-2