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Issue 2, 2011
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Magnetic microsphere confined ionic liquid as a novel sorbent for the determination of chlorophenols in environmental water samples by liquid chromatography

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Abstract

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 μg L−1. The results indicated that the ionic liquid-functionalized magnetic microspheres show significant promise for the analysis of CPs in environmental samples.

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

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Publication details

The article was received on 30 Jul 2010, accepted on 04 Nov 2010 and first published on 15 Dec 2010


Article type: Paper
DOI: 10.1039/C0EM00389A
J. Environ. Monit., 2011,13, 440-445

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

    F. Yang, R. Shen, Y. Long, X. Sun, F. Tang, Q. Cai and S. Yao, J. Environ. Monit., 2011, 13, 440
    DOI: 10.1039/C0EM00389A

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