Ionic liquid based dispersive liquid-liquid microextraction of aromatic amines in water samples

被引：65

作者：

Fan, Yun Chang ^{[1
]}

Hu, Zheng Liang ^{[2
]}

Chen, Mei Lan ^{[3
]}

Tu, Chao Shen ^{[3
]}

Zhu, Yan ^{[1
]}

机构：

[1] Zhejiang Univ, Dept Chem, Hangzhou 310028, Peoples R China

[2] Zhejiang Univ Natl Sci Pk, Hangzhou 310013, Peoples R China

[3] Biol & Environm Engn Coll Zhejiang Shuren Univ, Hangzhou 310015, Peoples R China

来源：

CHINESE CHEMICAL LETTERS | 2008年 / 19卷 / 08期

基金：

中国国家自然科学基金;

关键词：

Ionic liquid (IL); Dispersive liquid-liquid microextraction (DLLME); High performance liquid chromatography (HPLC); Aromatic amines;

D O I：

10.1016/j.cclet.2008.05.024

中图分类号：

O6 [化学];

学科分类号：

0703 [化学];

摘要：

In this work, a new microextraction method termed ionic liquid based dispersive liquid-liquid microextraction (IL-DLLME) was demonstrated for the extraction of 2-methylaniline, 4-chloroaniline, 1-naphthylamine and 4-aminobiphenyl in aqueous matrices. After extraction the ionic liquid (IL) phase was injected directly into the high performance liquid chromatography (HPLC) system for determination. Some parameters that might affect the extraction efficiency were optimized. Under the optimum conditions, good linear relationship, sensitivity and reproducibility were obtained. The limits of detection (LOD, S/N = 3) for the four analytes were in the range of 0.45-2.6 mu g L-1. The relative standard deviations (R. S. D., n = 6) were in the range of 6.2-9.8%. This method was applied for the analysis of the real water samples. The recoveries ranged from 93.4 to 106.4%. The main advantages of the method are high speed, high recovery, good repeatability and volatile organic solvent-free. (C) 2008 Yan Zhu. Published by Elsevier B.V. on behalf of Chinese Chemical Society. All rights reserved.

引用

页码：985 / 987

页数：3

共 19 条

[1]

Cold-induced aggregation microextraction: A novel sample preparation technique based on ionic liquids [J].