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Determination of trace amounts of Co(II) after preconcentration with surface ion imprinted sorbent based on activated carbon

ABSTRACT In this study, by using surface ion imprinting technique, Co(II)-imprinted activated carbon was synthesized as a new sorbent in order to use in solid phase extraction method. Several parameters were investigated and optimum experimental conditions were determined. Synthesized sorbent was characterized by Fourier Transform Infrared Spectroscopy, Scanning Electron Microscopy, Thermogravimetric Analysis and Brunaer, Emmet, and Teller techniques. The maximum adsorption capacity of imprinted and nonimprinted sorbents were found as 833.3 mg/g and 188.7 mg/g respectively. The limit of detection, the limit of quantification and relative standart deviation were found as 0.066 µg/L, 5.91 µg/L and 5.65% respectively.