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Solid phase extraction and determination of ultra trace amounts of mercury(II) using octadecyl silica membrane disks modified by hexathia-18-crown-6-tetraone and cold vapour atomic absorption spectrometry

Solvent ExtractionChemical EngineeringEnvironmental ChemistryEngineeringUltra Trace AmountsEnvironmental Analytical ChemistrySpectroscopyMass SpectrometryAnalytical ChemistryChemistryMedicineElemental CharacterizationMercury ChemistryChromatographySolid Phase Extraction