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Ligandless switchable solvent based liquid phase microextraction of nickel from food and cigarette samples prior to its micro-sampling flame atomic absorption spectrometric determination

Solvent ExtractionChemical EngineeringEngineeringAnalytical InstrumentationGas ChromatographyNatural SciencesSpectroscopyLigandless Switchable SolventMass SpectrometryLiquid Phase MicroextractionAnalytical ChemistryChemistryCigarette SamplesSample PreparationChromatography