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 μg/L and 0.012–0.46 μg/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.

在这项工作中，方便地利用一锅法合成了源自柚皮（MCMP）的磁性碳材料，并将其用作磁性固相萃取（MSPE）的吸附剂。利用红外光谱法，扫描电子显微镜法，透射电子显微镜法和振动样品磁强计等几种表征方法对制备的吸附剂的形貌，光谱和磁性进行了研究。非极性对羟基苯甲酸酯和极性氟喹诺酮类（FQs）用于研究MCMP的提取性能。在优化的萃取条件下，MCMP对目标分析物显示出令人满意的萃取性能。同时，将MCMP / MSPE与HPLC-DAD结合用于灵敏测定实际生活水样品中的对羟基苯甲酸酯和FQ。结果表明，对羟基苯甲酸酯和FQ的检出限（S / N = 3）分别在0.011-0.053μg/ L和0.012-0.46μg/ L范围内。对羟基苯甲酸酯的加标回收率在76.6–116％范围内，而对于FQs的加标回收率在80.2–114％范围内，具有良好的重复性（相对标准偏差小于10％）。与已报道的方法相比，已开发的MCMP / MSPE-HPLC-DAD具有一些优点，包括低成本，简单，灵敏度令人满意和绿色无污染。