中文摘要：本研究建立了一种用多壁碳纳米管磁性纳米颗粒作吸附剂的简便快捷的磁性固相萃取(M-SPE)程序，用于纯化玉米中的玉米赤霉烯酮(ZEA)、α-玉米赤霉烯醇 (α-ZOL)、β-玉米赤霉烯醇(β-ZOL)、玉米赤霉酮(ZAN)、α-玉米赤霉醇 (α-ZAL)及β-玉米赤霉醇(β-ZAL)。用玉米样品也成功地评价了该方法的分析性能，并证明了该方法是监测玉米中的ZEN及其衍生物的有效工具。
外文摘要：A simple and rapid magnetic solid-phase extraction (M-SPE) procedure using multi-walled carbon nanotube-magnetic nanoparticles (MWCNT-MNPs) as sorbents was established for purification of zearalenone (ZEA), α-zearalenol (α-ZOL), β-zearalenol (β-ZOL), zearalanone (ZAN), α-zearalanol (α-ZAL) and β-zearalanol (β-ZAL) in maize. The main parameters affecting the clean-up efficiency were thoroughly investigated, and high purification efficiencies for all analytes were obtained. The resulting MWCNT-MNP-ultra-high performance liquid chromatography-tandem mass spectrometry (UHPLC-MS/MS) method was validated for maize samples. The matrix effects were greatly minimized using the M-SPE approach, with signal suppression/enhancement values decreased from 69.9–127.6% to 92.1–103.8%. Consequently, complex matrix-matched calibration curves were not necessary and the calibrations constructed in acetonitrile could be applied for accurate quantification of the targeted mycotoxins in real samples. The average recoveries ranged from 75.8 to 104.1% and the inter- and intra-day precision values expressed as RSDs, were all lower than 14%. Limits of detection and quantification were in the range of 0.03–0.04 and 0.07–0.10 μg/kg, respectively. The analytical performance of the developed method was also successfully evaluated with maize samples, and this method was proved to be a powerful tool for monitoring ZEA and its derivatives in maize.
外文关键词：Magnetic solid-phase extraction；Multi-walled carbon nanotubes；Maize, Zearalenone and its derivatives；Ultra-high performance liquid chromatography-tandem mass spectrometry
作者：Han, Z；Jiang, KQ；Fan, ZC；Di Mavungu, JD；Dong, MF；Guo, WB；Fan, K；Campbell, K；Zhao, ZH；Wu, YJ
作者单位：Shanghai Acad Agr Sci
期刊名称：FOOD CONTROL
期刊影响因子：3.388
出版年份：2017
出版刊次：9
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