用于萃取过渡金属离子的特定任务离子液体三辛基甲基氯化铵水杨酸酯。

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

机构信息

Department of Chemistry, M.V. Lomonosov Moscow State University, 1/3 Leninskiye gory, 119992 Moscow, Russia.

出版信息

Talanta. 2010 Jan 15;80(3):1177-82. doi: 10.1016/j.talanta.2009.09.003.

DOI:10.1016/j.talanta.2009.09.003

PMID:20006071

Abstract

A quaternary ammonium-based room temperature ionic liquid trioctylmethylammonium salicylate (TOMAS) has been studied as an extractant of transition metal ions (Fe(3+), Cu(2+), Ni(2+), Mn(2+)) 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.

摘要

已研究了一种基于季铵盐的室温离子液体三辛基甲基铵水杨酸盐（TOMAS），作为水溶液中过渡金属离子（Fe(3+)、Cu(2+)、Ni(2+)、Mn(2+)）的萃取剂。考察了 pH 值对金属离子回收的影响。提出了萃取进入离子液体的机理。利用 TOMAS 修饰电极对水溶液中过渡金属进行剥离伏安法测定的可能性已得到证明。