期刊
JOURNAL OF CHROMATOGRAPHY A
卷 1546, 期 -, 页码 28-35出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.chroma.2018.03.001
关键词
Magnetic carbon material; Pomelo peel; Magnetic solid-phase extraction; Parabens; Fluoroquinolones
资金
- National Natural Science Foundation of China [21777133, 21577111]
- National Key Research and Development Program of China [2016YFC0502904]
- Natural Science Foundation of Guangdong Province of China [2015A030313006]
In this work, magnetic carbon material derived from pomelo peels (MCMPs) was conveniently fabricated utilizing one-pot synthesis method and employed as adsorbent of magnetic solid-phase extraction (MSPE). Several characterized measures including infrared spectroscopy, scanning electron microscopy, transmission electron microscopy and vibrating sample magnetometer were used to investigate the morphology, spectroscopic and magnetic properties of prepared adsorbent. Apolar parabens and polar fluoroquinolones (FQs) were used to investigate the extraction performance of MCMPs. Under the optimized extraction conditions, the MCMPs displayed satisfactory extraction performance for target analytes. At the same time, the MCMPs/MSPE was combined with HPLC-DAD for the sensitive determination of parabens and FQs in real-life water samples. Results showed that the limits of detection (S/N = 3) for parabens and FQs were in the ranges of 0.011-0.053 mu g/L and 0.012-0.46 mu g/L, respectively. The spiked recoveries were in the range of 76.6-116% for parabens and 80.2-114% for FQs with good repeatability (relative standard deviations less than 10%). In comparison to reported methods, the developed MCMPs/MSPE-HPLC-DAD showed some merits including low-cost, simplicity, satisfactory sensitivity and green non-pollution. (C) 2018 Elsevier B.V. All rights reserved.
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