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Multivariate optimization of ultrasound-assisted extraction using Doehlert matrix for simultaneous determination of Fe and Ni in vegetable oils by high-resolution continuum source graphite furnace atomic absorption spectrometry

Solvent ExtractionExtractive MetallurgyChemical EngineeringEngineeringSonoelectrochemistryPower UltrasoundNatural SciencesSpectroscopyMultivariate OptimizationDoehlert MatrixAnalytical ChemistryUltrasound-assisted ExtractionChemistryUltrasoundMineral ProcessingElemental Characterization