Selective solid-phase extraction of rare earth elements by the chemically modified Amberlite XAD-4 resin with azacrown ether |
| |
Authors: | Sudhir R. Dave Harjinder Kaur Shobhana K. Menon |
| |
Affiliation: | Department of Chemistry, School of Sciences, Gujarat University, Ahmedabad 380 009, India |
| |
Abstract: | A selective solid-phase extraction procedure using chemically modified Amberlite XAD-4 with monoaza dibenzo 18-crown-6 ether was investigated for the preconcentration and separation of La(III), Nd(III) and Sm(III) in synthetic solution. Before loading samples on synthesized adsorbent adjust pH 4.5 by suitable buffer solution. The adsorbed rare earth elements were eluted by 2 M hydrochloric acid. Various parameters like preconcentration, breakthrough capacity, flow rate were investigated. The limits of detection (n = 5) and limits of quantification (n = 5) for La(III), Nd(III) and Sm(III) were founded 3.9, 4.2 and 7.4 μg L?1 and 13, 15 and 26 μg L?1, respectively. The eluted metal ions were determined by ICP-AES. |
| |
Keywords: | |
本文献已被 ScienceDirect 等数据库收录! |
|