Preconcentration and determination of ultra-trace amounts of U(VI) and Th(IV) using titan yellow-impregnated Amberlite XAD-7 resin
作者： Seyyed-Hossein Hosseini , Abolfazl Rahmani-Sani , Yousef Jalalabadi , Mohammad Karimzadeh , Ahmad Hosseini-Bandegharaei
DOI: 10.1080/03067319.2015.1016009
关键词: Elution 、 Extraction (chemistry) 、 Titan yellow 、 Amberlite 、 Detection limit 、 Chromatography 、 Salting out 、 Chemistry 、 Analyte 、 Adsorption
摘要: A simple and sensitive method for the determination of ultra trace amounts U(VI) Th(IV) ions by spectrophotometric after solid-phase extraction on a new extractant-impregnated resin (EIR) has been reported. The EIR was synthesised impregnating weakly polar polymeric adsorbent, Amberlite XAD-7, with titan yellow (TY) as extractant. analytical is based simultaneous adsorption analyte in mini-column packed TY/XAD-7 performing sequential elution 0.5% (w/v) Na2CO3 uranium 2.0 M HCl thorium. influences parameters including pH, salting out agent sample volume were investigated. interference effects foreign retention also explored. limits detection low 50 25 ng L−1, respectively. Relative standard deviations (n = 7) 3.1% 2.9%, successfully applied to ...
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