Determination of some heavy metals from aqueous solutions using modified Amberlite XAD-4 resin by selective solid-phase extraction

Abstract The adsorption efficiency of Pb(II) and Cd(II) from aqueous solutions on m-phenylenediamine-modified Amberlite XAD-4 resin was investigated. effects pH, adsorbent amount, initial metal concentration, eluent type volume flow rate the retention ions have been studied column studies. optimum parameters were determined as pH 5, concentration 10 mg/L, stirring time 30 min 0.2 g amount 2.5 mL/min for a quantitative adsorption. Sorption data interpreted in terms Langmuir Freundlich equations, both models found to be fully appropriate. Each can used up sequential analyses without considerable change. results indicate high capacity satisfactory recovery Cd(II).