Task-specific ionic liquid trioctylmethylammonium salicylate as extraction solvent for transition metal ions

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• 作者：Vladimir M. Egorov ; Dmitry I. Djigailo ; Dmitry S. Momotenko ; Denis V. Chernyshov ; Irina I. Torocheshnikova ; Svetlana V. Smirnova ; Igor V. Pletnev
• 关键词：Ionic liquids ; Solvent extraction ; Transition metals ; Voltammetric analysis
• 刊名：Talanta
• 出版年：2010
• 出版时间：January 2010
• 年：2010
• 卷：80
• 期：3
• 页码：1177-1182
• 全文大小：481 K

文摘

A quaternary ammonium-based room temperature ionic liquid trioctylmethylammonium salicylate (TOMAS) has been studied as an extractant of transition metal ions (Fe³⁺, Cu²⁺, Ni²⁺, Mn²⁺) in aqueous solutions. The effect of pH value on the recovery of metal ions has been investigated. The mechanism of extraction into the ionic liquid has been proposed. The possibility of stripping voltammetric determination of transition metals in aqueous solutions using TOMAS-modified electrodes has been demonstrated.