Magnetic Solid ‒ Phase Extraction of Trace Amounts of Nickel in Food Samples Using Polydopamine Coated Fe3O4 Nanoparticles

Nekoeinia, Mohsen; Yousefinejad, Saeed; Abdi, Mohammad Reza; Ebrahimpour, Behnam

Document Type : Full research article

Authors

¹ Department of Chemistry, Payame Noor University, P.O.BOX 19395-3697 Tehran, Iran

² . Department of Occupational Health Engineering, School of Health, Shiraz University of Medical Sciences, Shiraz, Iran

³ Department of Chemistry, Tarbiat Modares University, P.O. Box 14115-175, Tehran, Iran

Abstract

A simple and a green methodology has been developed for the preconcentration of Ni²⁺ based on the adsorption of its dimethylglyoximate complex on polydopamine coated Fe₃O₄ nanoparticles. The adsorbed complex was easily desorbed using 1.0 mL of CHCl₃ and the concentration of nickel was determined by UV-Vis spectrophotometry. The effects of pH, sorbent mass, extraction time on the sorption of nickel dimethylglyoximate complex were investigated using Box–Behnken design. In optimal experimental conditions, a wide linear range of 5.0-600.0 μg/L with detection limit of 1.49 μg/L was obtained. The proposed method was applied for extraction and preconcentration of Ni²⁺ in various food samples and the results were compared with the official AOAC method.

Keywords

20.1001.1.23832207.2017.4.2.1.3

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Iranian Journal of Analytical Chemistry

Magnetic Solid ‒ Phase Extraction of Trace Amounts of Nickel in Food Samples Using Polydopamine Coated Fe3O4 Nanoparticles

References

References

Volume 4, Issue 2 - Serial Number 2
September 2017
Pages 1-9

Magnetic Solid ‒ Phase Extraction of Trace Amounts of Nickel in Food Samples Using Polydopamine Coated Fe3O4 Nanoparticles

References

References

Volume 4, Issue 2 - Serial Number 2September 2017Pages 1-9

Volume 4, Issue 2 - Serial Number 2
September 2017
Pages 1-9