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A sensitive, simple and selective preconcentration method was developed for the preconcentration of trace amounts of Ni(II) ions using 1-(2-pyridylazo)-2-naphthol (PAN) modified β-cyclodextrin butanediol diglycidyl ether polymer as a solid phase extractant. Potential factors affecting the sorption of Ni(II) were investigated. Meanwhile, the optimum conditions were established. The sorbed Ni(II) was eluted using 5 ml of 2 M HCl. The preconcentrtion factor was 70. The detection limit for Ni(II) was 1.18 ng/ml. The relative standard deviation (RSD %) was >1%. The developed method was successfully applied for the determination of trace Ni(II) in different water and potato chip samples as well as reference alloy samples.

macedonian journal of chemistry and chemical engineering

Solid phase extraction and preconcentration of Ni(II) using 1-(2-pyridylazo)-2-naphthol) (PAN) modified β-cyclodextrin butanediol diglycidyl ether polymer as a solid phase extractant