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Column solid phase extraction and flame atomic absorption spectrometric determination of manganese(II) and iron(III) ions in water, food and biological samples using 3-(1-methyl-1H-pyrrol-2-yl)-1H-pyrazole-5-carboxylic acid on synthesized graphene oxide

Food ChemistryChemical EngineeringEngineeringEnvironmental Analytical ChemistryMetalloid ContaminationElemental CharacterizationAnalytical ChemistrySynthesized Graphene OxideBiological SamplesChemistry-1H-pyrazole-5-carboxylic AcidTrace ElementChromatography