Separation/preconcentration of trace copper by extraction into [C4mim] [PF6] RITL containing p-tert-butyl-calix[4]arene functionalized with o-phenanthroline prior to flame absorption atomic spectrometry

被引：7

作者：

Ma, Lina ^{[1
]}

Zhu, Xiashi ^{[1
]}

Wang, Wenjun ^{[1
]}

机构：

[1] Yangzhou Univ, Coll Chem & Chem Engn, Yangzhou 225009, Peoples R China

来源：

JOURNAL OF MOLECULAR LIQUIDS | 2013年 / 178卷

基金：

中国国家自然科学基金;

关键词：

Copper(II); Room temperature ionic liquid; p-tert-butyl-calix[4]arene; Liquid-liquid extraction; Flame atomic absorption spectrometry; ZINC;

D O I：

10.1016/j.molliq.2012.11.013

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

liquid-liquid extraction (LLE)-flame atomic absorption spectrometry (FAAS) for the separation/analysis of copper has been developed. The method was based on the fact that the inclusion complex of copper(11) with 25, 27-di (5-phenanthrolinylaminocarbonylmethozy)-26,28-dihydroxy-p-tert-butylcalix[4]arene (TBCP) could be extracted into room temperature ionic liquids (RTILs, 1-butyl-3-methylimidazolium hexafluoro-phosphate [C(4)mim] [PF6] as the green extractant. TBCP as the complexlant), and the copper(11) was subsequently determined by FAAS. The LLE was optimized in detail. The selectivity and mechanism of LLE were approached. Under optimized experimental conditions, the linear range of calibration curve for the determination of copper(II) was 0.020-10.0 mu g/mL The detection limit estimated (S/N = 3) was 3.59 ng/mL with 3.0% RSD. It has been applied for the determination of copper(11) in water samples with satisfactory results. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：20 / 24

页数：5