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Separation and preconcentration of trace amounts of lead on octadecyl silica membrane disks modified with a new S-containing Schiff's base and its determination by flame atomic absorption spectrometry

Chemical EngineeringEnvironmental ChemistryTrace AmountsEngineeringEnvironmental Analytical ChemistryMass SpectrometryLead IdentificationAnalytical ChemistryChemistryMedicineElemental CharacterizationTrace ElementChromatographyNew S-containing Schiff