Ion imprinted polymer particles of neodymium: synthesis, characterization and selective recognition

• Published in: Journal of rare earths Vol. 27; no. 1; pp. 22 - 27
• Main Authors: GUO, Jiajia, CAI, Jibao, SU, Qingde
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01-02-2009; Department of Chemistry, University of Science and Technology of China, Hefei 230026, China
• Subjects: ion imprinted polymer; lanthanides; neodymium ion; selective separation; neodymium ion; selective separation; ion imprinted polymer; lanthanides
• ISSN: 1002-0721; 2509-4963
• DOI: 10.1016/S1002-0721(08)60183-0

Neodymium ion imprinted polymer (Nd
3+-IIP) particles for selective solid-phase extraction of Nd
3+ were prepared and determined with inductively coupled plasma atomic emission spectrometry (ICP-AES). The unleached Nd
3+-IIP particles were prepared by the copolymerization of Nd
3+-5,7-dichloroquinoline-8-ol-4-vinylpyridine ternary complex with styrene and divinyl benzene, then Nd
3+ was leached to obtain Nd
3+-IIP particles. The adsorption capacity of the Nd
3+-IIP was 35.18 mg/g. The largest selectivity coefficient for Nd
3+ in the presence of competitive ions such as La
3+, Ce
3+, Pr
3+ and Sm
3+ was over 110. The proposed method was validated by analyzing two certified reference materials (GBW07301a sediment and GBW07401 soil) and the determined values were in a good agreement with standard values. The method was convenient, selective, sensitive and applicable to the determination of trace Nd
3+ in environmental samples with complicated matrix.