Abstract
The purpose of this study is to prepare a new ion imprinted polymer for MoVI with high selectivity. Ion-imprinted polymer (IIP) particles were synthesized by thermally copolymerization. For the synthesis of the ion imprinted polymer, the ion pair of (MoVI-thiocyanate) and NR4+ was used. The ion pair was precipitated in an aqueous phase and then dissolved in acetonitrile as a porogen. The imprinted ion was removed using 10% (v/v) methanol in HCl (0.5 mol L-1). The unleached and leached IIP particles were characterized by infrared spectroscopy, thermogravimetric analysis, surface area analysis, scanning electron microscopy and energy dispersive X-ray analysis. The use of the new MoVI-IIP in solid phase extraction revealed a maximum adsorption capacity of 3.77 mg MoVIper gram of MoVI-IIP in optimum conditions of extraction. The selectivity coefficients of the IIP for Mo in comparison with other metal ions were also evaluated. The proposed Mo-IIP was successfully applied for MoVI determination in different types of water samples.
Highlights
Molybdenum is a biologically important trace element, which occurs in various oxidation states in minerals rather than as free metal
The IR spectra of the non‐imprinted polymer (NIP), unleached imprinted polymer (IIP) and leached IIP particles were recorded by the KBr pellet method using a vertex spectrometer
The IR spectra of NIP and leached IIP were found to be almost similar indicating that all the polymer particles have similar backbones
Summary
Molybdenum is a biologically important trace element, which occurs in various oxidation states in minerals rather than as free metal. Molybdenum is used as a component in glass, fertilizer, catalyst, lubricant and alloy
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