专业从事离子液体的合成、应用及其相关技术的研究工作----Lanzhou Greenchem ILs/青岛奥立科

题名

[Wiley数据库][2012] Application of ionic liquid-based microwave-assisted extraction of malachite green and crystal violet from water samples

参考引用方式

Zhanqi Gao, Tingfeng Liu, Xiaoju Yan, Cheng Sun, Huan He, Shaogui Yang. Journal of Separation Science, Volume 36, Issue 6, March 2013 , Pages 1112–1118

研究机构

南京大学

所涉及离子液体

1-丁基-3-甲基咪唑六氟磷酸盐         174501-64-5

研究领域

微波辅助提取；龙胆紫；孔雀石绿；离子液体

论文摘要

A simple, environmentally friendly and efficient technique, ionic liquid-based microwave-assisted extraction was first used to determine malachite green and crystal violet from water samples coupled to high-performance liquid chromatography. The key parameters influencing extraction efficiency were investigated, such as the type of ionic liquids, the volume of ionic liquid, extraction time, and so on. Under the optimum conditions, good reproducibility of the extraction performance was obtained (relative standard deviation, 1.0% for malachite green and 5.9% for crystal violet, n=5). Good linearity (0.10-25 µg L-1) was observed with correlation coefficients between 0.9991 and 0.9964. The detection limits of malachite green and crystal violet were 0.080 and 0.030 µg Lí1, respectively. The proposed method had been successfully applied to determine malachite green and crystal violet in real water samples with recoveries ranging from 95.4 to 102.8%. Compared with the previous technologies, the proposed method required less extraction time (2 min), and provided lower detection limits and higher enrichment factors. Moreover, there was no volatile and hazardous organic solvents released. Based on these simple, environmentally friendly, rapid and highly efficient results, the proposed approach provides a new and promising alternative for simultaneously extracting trace amounts of MG and CV from water samples.

关键词

Crystal violet; Malachite green; Microwave assisted extraction; Ionic liquid.