Determination of type A trichothecenes in coix seed by magnetic solid-phase extraction based on magnetic multi-walled carbon nanotubes coupled with ultra-high performance liquid chromatography-tandem mass spectrometry

文献类型： 外文期刊

第一作者： Dong, Maofeng

作者： Dong, Maofeng;Si, Wenshuai;Wang, Weimin;Bai, Bing;Nie, Dongxia;Song, Weiguo;Zhao, Zhihui;Han, Zheng;Guo, Yirong;Han, Zheng

作者机构：

关键词： Magnetic solid-phase extraction;Magnetic multi-walled carbon nanotubes;Ultra-high performance liquid chromatography-tandem mass spectrometry;Type A trichothecenes;Coix seed

期刊名称：ANALYTICAL AND BIOANALYTICAL CHEMISTRY （ 影响因子：4.142； 五年影响因子：3.863 ）

ISSN：

年卷期：

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收录情况： SCI

摘要： Magnetic solid-phase extraction (m-SPE) is a promising sample preparation approach due to its convenience, speed, and simplicity. For the first time, a rapid and reliable m-SPE approach using magnetic multi-walled carbon nanotubes (m-MWCNTs) as the adsorbent was proposed for purification of type A trichothecenes including T-2 toxins (T2), HT-2 toxins (HT-2), diacetoxyscirpenol (DAS), and neosolaniol (NEO) in coix seed. The m-MWCNTs were synthesized by assembling the magnetic nanoparticles (Fe3O4) with MWCNTs by sonication through an aggregation wrap mechanism, and characterized by transmission electron microscope. Several key parameters affecting the performance of the procedure were extensively investigated including extraction solutions, desorption solvents, and m-MWCNT amounts. Under the optimal sample preparation conditions followed by analysis with ultra-high performance liquid chromatography-tandem mass spectrometry (UHPLC-MS/MS), high sensitivity (limit of quantification in the range of 0.3-1.5 mu g kg(-1)), good linearity (R (2) > 0.99), satisfactory recovery (73.6-90.6 %), and acceptable precision (aecurrency sign2.5 %) were obtained. The analytical performance of the developed method has also been successfully evaluated in real coix seed samples.

分类号： O65

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