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Determination by AAS of Some Trace Heavy Metal Ions in Some Natural and Biological Samples after Their Preconcentration Using Newly Chemically Modified Chloromethylated Polystyrene-PAN Ion-Exchanger

Chemical EngineeringEnvironmental ChemistryEngineeringIon ExchangeEnvironmental Analytical ChemistryBioanalysisMass SpectrometryTrace MetalAnalytical ChemistryBiological SamplesChemistryPolystyrene-pan Ion-exchangerMedicineElemental CharacterizationChromatography