Solid-phase extraction applications based on ion-imprinting

The aim of this study is the investigation of efficiency in analytical applications developing new solid polymeric sorbent materials which have Fe(III) ion template recognizing Fe(III) ions, introducing the ability of selectivity properties of these Fe(III) templates. In the first step of this study, which is formed by the synthesis of three different sorbent materials, methacryloylamido antipyrine (MAAP) has been used as a functional monomer and preorganization complex of MAAP-Fe(III) has been prepared by the interaction of MAAP and templated Fe(III) ion. By using synthesized preorganization complex, the synthesis of Fe(III) imprinted P(MAAP-Fe(III)PQS) simectite nanocomposite, thermosensitive Fe(III) ion imprinted P(NIPA-Fe(III)-MAAP) polymeric particles and Fe(III) imprinted P(EDMA-Fe(III)-MAAP) microbeads have been polymerized. After that, the solid Fe(III) ions have leached from these structures using 4 M HNO3 and three different sorbent materials which have binding sites selective to Fe(III) ions have been obtained. In the second step, the structures of these sorbent materials have been confirmed with the help of characterization studies and the usabilities of these sorbent materials in Fe (III) ions adsorption-desorption studies have been investigated comparing the adsorption isotherms and their selectivity in the presence of Al(III), Co(II), Zn(II), Cu(II), Ni(II) and Fe(III) ions existing together other ions in one enviroment. In the final step, in order to use sorbent materials in analytical applications, preconcentration of Fe(III) ions in aqueus solutions using Fe(III) templated sorbent materials in batch systems and the determination performance using atomic spectroscopy methods have been investigated. Keywords:Molecularly imprinted polymers, Ion imprinted polymers, Nanocomposite, Iron, Organoclay, Solid-Phase Extraction, Thermo sensitive polymers, Preconcentration