Preconcentration of trace amount Cu(II) by solid-phase extraction method usingactivated carbon-based ion-imprinted sorbent

In this study, preconcentration conditions of trace amounts copper ions were investigated with solid-phase extraction (SPE) method by synthesizing activated carbon-based ion-imprinted sorbent (Cu(II)-IAC) a novel and selective approach. Flame atomic absorption spectrometry (FAAS) was used for the determination metal concentrations. For characterization sorbents, scanning electron microscopy, energy dispersive X-ray (SEM/EDX) analysis, Fourier transform infrared spectroscopy (FTIR) used. Optimum SPE procedure, various parameters such as pH value, eluent type concentration, sample volume, flow rate, adsorption capacity, selectivity studied. The isotherm analyzed Freundlich Langmuir isotherm, maximum capacity found to be 142.9 312.5 mg/g nonimprinted (Cu(II)-non-IAC) Cu(II)-IAC respectively from isotherm. Limit (LOD) limit quantification (LOQ) values 0.038 0.113 μg/L, sorbent, results compared literature. accuracy validity proposed evaluated Cu(II) tap water samples certified reference materials (CRMs) (soft drinking ERML-CA021e NIST 1643e) analysis. Good quantitative recoveries obtained spiked