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Application of modified nano-alumina as a solid phase extraction sorbent for the preconcentration of Cd and Pb in water and herbal samples prior to flame atomic absorption spectrometry determination

Solvent ExtractionExtractive MetallurgyEnvironmental ChemistryChemical EngineeringEngineeringEnvironmental Analytical ChemistryHerbal SamplesAnalytical ChemistryBio-based SorbentChemistryMedicineElemental CharacterizationChromatographyDrug Analysis