Development of dispersive liquid-liquid microextraction based on deep eutectic solvent using as complexing agent and extraction solvent: application for extraction of heavy metals |
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| Authors: | Saeed Mohammad Sorouraddin Mir Ali Farajzadeh Tohid Okhravi |
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| Affiliation: | 1. Department of Analytical Chemistry, Faculty of Chemistry, University of Tabriz , Tabriz, Iran saied_sorour@yahoo.com;3. Department of Analytical Chemistry, Faculty of Chemistry, University of Tabriz , Tabriz, Iran;4. Engineering Faculty, Near East University , Nicosia, Turkey;5. Department of Analytical Chemistry, Faculty of Chemistry, University of Tabriz , Tabriz, Iran |
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| Abstract: | ABSTRACT A green and efficient dispersive liquid-liquid microextraction method based on a new deep eutectic solvent has been developed for the preconcentration and extraction of cobalt and nickel ions. The deep eutectic solvent is formed by mixing choline chloride (hydrogen bond acceptor) and 4-aminophenol (hydrogen bond donor). Then, it is used as a chelating agent as well as extraction solvent. Under the optimum experimental conditions, the linear ranges for Ni(II) and Co(II) were 0.80–50 and 0.50–50 µgL?1, respectively, by flame atomic absorption spectrometry. The obtained detection limits were 0.30 and 0.22 µg L?1 for Ni(II) and Co(II), respectively. |
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| Keywords: | Dispersive liquid-liquid microextraction deep eutectic solvent food samples water samples |
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