Patent ID: 6960645

Claim:
A process for the synthesis of ion imprinted polymer particles for solid phase extraction preconcentration of erbium ions, the process consisting essentially of: (a) forming a mixed ligand ternary complex of erbium imprint ion with 5,7-dichloroquinoline-8-ol and 4-vinyl pyridine; (b) dissolving the ternary complex in a suitable porogen to form a pre-polymerizing mixture; (c) combining the mixture of step (b) with a functional monomer and a crosslinking monomer and polymerizing by γ-irradiation or by photochemical and thermal polymerization to obtain a polymer material; (d) grinding and sieving of polymer material obtained in (c) to prepare erbium ion imprinted polymer particles; (e) selective leaching of imprint ion embedded materials in the polymer particles of (d) using a mineral acid.