Synthesis and Identification of Magnetic Nanocomposite of L-Arginine Functionalized Graphene in Separation and Preconcentration of Copper Ion

Document Type : Research Article

Authors

1 Department of Chemistry, Faculty of Science, University of Kurdistan,, Sanandaj, I.R. IRAN

2 Department of Chemistry, Faculty of Science, University of Kurdistan, Sanandaj, I.R. IRAN

Abstract

In this study, we investigated a solid-phase extraction procedure for separation and preconcentration of trace levels of Cu (II) ion using a new L-Arginine functionalized Fe3O4 graphene nanocomposite. Experimental parameters such as pH, amount of nanocomposite, and ultrasonic time were studied in detail. The effect of potentially interfering ions on the recovery of Cu(II) was also examined and the results showed there is no considerable effect on the determination of Cu (II). Under optimized conditions, the method provided an enhancement factor of 36.8, a linear range of 5-250 ng/mL of Cu (II), a detection limit of 1.96 ng/mL, and a relative standard deviation 3.81 % at 25 ng/mL of Cu (II). The method was validated by the extraction and determination of Cu (II) in water and rice samples.

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References

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