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Preconcentration and speciation of trace amounts of chromium in saline samples using temperature-controlled microextraction based on ionic liquid as extraction solvent and determination by electrothermal atomic absorption spectrometry

Solvent ExtractionIonic LiquidChemical EngineeringEnvironmental ChemistryEngineeringSeparation ScienceGas ChromatographyMass SpectrometrySaline SamplesAnalytical ChemistryChemistryChromatographic AnalysisTemperature-controlled Microextraction