2010•Chemical ReagentsRequires access

Determination of trace copper(II) in water by flame AAS after preconcentration by solid-phase extraction with Amberlite XAD-2000

Qingbin Li

Abstract

A method for enriching trace copper(Ⅱ)in water by solid-phase extraction with Amberlite XAD-2000 resins was proposed for the determination of copper content by flame AAS.Various factors such as pH value,eluant type,concentration,volume and flow rate were discussed,Under optimum conditions,the maximum adsorption capacities of Cu(Ⅱ)by the ion-exchange resin was 9.35 mg/g,the recovery was 96%.This method is not affected by matrix ions and can be used to determine the trace copper(Ⅱ)in environmental samples or in aqueous medium with coexisting matrix ions such as sea water.

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Key concepts: Amberlite, Chemistry, Copper, Solid phase extraction, Elution, Extraction (chemistry), Matrix (chemical analysis), Adsorption