Journal
JOURNAL OF SEPARATION SCIENCE
Volume 41, Issue 3, Pages 678-688Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/jssc.201700881
Keywords
anion exchange; magnetic nanoparticles; magnetic solid-phase extraction; non-steroidal anti-inflammatory drugs
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Funding
- Fundamental Research Funds for the Central Universities [2017TS135]
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Diallyldimethylammonium chloride modified magnetic nanoparticles were synthesized by the thiol-ene click chemistry reaction. Diallyldimethylammonium chloride rendered the material plenty of quaternary ammonium groups, and thus the excellent aqueous dispersibility and anion-exchange capability. The novel material was then used as the magnetic solid-phase extraction sorbent to extract eight non-steroidal antiinflammatory drugs from water samples. Combined with high-performance liquid chromatography and ultraviolet detection, under the optimal conditions, the developed method exhibited wide linearity ranges (1-1000, 2-1000, and 5-1000 ng/mL) with recoveries of 88.0-108.6% and low limits of detection (0.3-1.5 ng/mL). Acceptable precision was obtained with satisfactory intra-and inter-day relative standard deviations of 0.4-4.4% (n = 3) and 1.1-5.5% (n = 3), respectively. Batch-to-batch reproducibility was acceptable with relative standard deviations < 9.7%. The hydrophilic magnetic nanoparticle featured with quaternary ammonium groups showed high analytical potential for acidic analytes in environmental water samples.
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