Magnetic microsphere confined ionic liquid as a novel sorbent for the determination of chlorophenols in environmental water samples by liquid chromatography

被引：38

作者：

Yang, Fei ^{[1
]}

Shen, Rui ^{[1
]}

Long, Yiming ^{[1
]}

Sun, Xiangyu ^{[1
]}

Tang, Fei ^{[1
]}

Cai, Qingyun ^{[1
]}

Yao, Shouzhuo ^{[1
]}

机构：

[1] Hunan Univ, Coll Chem & Chem Engn, State Key Lab Chemo Biosensing & Chemometr, Changsha 410082, Hunan, Peoples R China

来源：

JOURNAL OF ENVIRONMENTAL MONITORING | 2011年 / 13卷 / 02期

关键词：

SOLID-PHASE EXTRACTION; POLYCYCLIC AROMATIC-HYDROCARBONS; CAPILLARY-ZONE-ELECTROPHORESIS; MASS-SPECTROMETRY DETECTION; CROSS-COUPLING REACTIONS; GAS-CHROMATOGRAPHY; PHENOLIC-COMPOUNDS; STATIONARY-PHASE; ELECTROCHEMICAL DETECTION; ULTRAVIOLET DETECTION;

D O I：

10.1039/c0em00389a

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Magnetic microsphere confined ionic liquid was synthesized by covalently bonding N-methylimidazolium on magnetic microspheres. The functionalized magnetic microspheres were characterized by Fourier transform infrared (FT-IR) spectrometry, thermogravimetric analysis (TGA) and scanning electron microscopy (SEM). The prepared material was used for the preconcentration of three chlorophenols (CPs) in water combined with high-performance liquid chromatography (HPLC). Several conditions that probably affected the extraction efficiency such as standing time, eluent and its volume, sample pH and volume, were optimized. Under the optimal conditions, good recoveries (70.3-88.8%) were achieved with satisfactory relative standard deviations (RSDs) of less than 6.0%. The limits of detection for the three CPs were 0.20-0.35 mu g L-1. The results indicated that the ionic liquid-functionalized magnetic microspheres show significant promise for the analysis of CPs in environmental samples.

引用

页码：440 / 445

页数：6

共 45 条

[1] On-line trace enrichment of phenolic compounds from water using a pyrrole-based polymer as the solid-phase extraction sorbent coupled with high-performance liquid chromatography [J].