Preconcentration and determination of nickel (II) and copper (II) ions, in vegetable oils by [TBP] [PO4] IL-based dispersive liquid–liquid microextraction technique, and flame atomic absorption spectrophotometry
Journal of Food Composition and Analysis(2020)
Abstract
•Determining of Ni2+ and Cu2+ ions, in vegetable oils by method of [TBP] [PO4] IL-based DLLME technique, by flame atomic absorption spectrophotometry.•Enrichment and determination of traces of Ni2+ and Cu2+ ions, in vegetable oils by [TBP] [PO4] IL.•Use of a green solvent in IL-DLLME method for preconcentration of Ni2+ and Cu2+ ions in vegetable oils.
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Key words
Metal ions preconcentration,Tetrabutyl phosphonium phosphate ionic liquid,IL-DLLME,Vegetable oils
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