2008•Chinese Journal of Analysis LaboratoryRequires access

Determination of trace lead (II) in aqueous solutions by flame AAS with solid-phase extraction using Amberlite XAD-2000

Yonghua Cheng

Abstract

In this paper,a method for the determination of the trace lead(Ⅱ) in aqueous solutions by flame AAS with solid-phase extraction using Amberlite XAD-2000 resins was proposed,and various influencing factors such as pH,eluent type,concentration and volume of the eluent,and flow rate etc.on recovery were discussed.Under the optimum conditions,the maximum adsorption capacities of Pb(Ⅱ) was 7.2 mg/g,and the recovery was 92%.This method has strong anti-interference capability and can be used to determine the trace lead(Ⅱ) in environmental samples or in aqueous solutions containing interference ions such as sea water.

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Key concepts: Amberlite, Chemistry, Solid phase extraction, Aqueous solution, Column chromatography, Extraction (chemistry), Adsorption, Chromatography