Iron (II, III) oxide/multi-walled carbon nanotube composite as solid-phase extraction sorbent followed by ultra-high performance liquid chromatography tandem mass spectrometry for simultaneous determination of zearalenone and type A trichothecenes in Salviae miltiorrhizae Radix et Rhizoma (Danshen)
文献类型: 外文期刊
第一作者: Jiang, Keqiu
作者: Jiang, Keqiu;Huang, Peng;Luan, Lianjun;Wu, Yongjiang;Fan, Kai;Guo, Wenbo;Zhao, Zhihui;Han, Zheng
作者机构:
关键词: Salviae miltiorrhiza Radix et Rhizoma;Zearalenone;Type A trichothecenes;Solid-phase extraction;Iron (II;III) oxide/multi-walled carbon nanotube composite;Ultra-high performance liquid;chromatography-tandem mass spectrometry
期刊名称:JOURNAL OF CHROMATOGRAPHY A ( 影响因子:4.759; 五年影响因子:4.302 )
ISSN:
年卷期:
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收录情况: SCI
摘要: For the first time, a reliable solid-phase extraction (SPE) procedure using iron (II, III) oxide (Fe3O4)/multi-walled carbon nanotube (MWCNT) composite as sorbents was proposed for purification and enrichment of zearalenone (ZEA) and four type A trichothecenes (T-2 toxin (T-2), HT-2 toxin (HT-2), neosolaniol (NEO) and diacetoxyscirpenol (DAS)) in Salviae miltiorrhiza Radix et Rhizoma (Danshen). The Fe3O4/MWCNT composite was synthesized by assembling Fe3O4 with MWCNT by sonication through an "aggregation wrap" mechanism and several key parameters affecting the performance of SPE procedure such as the composition of sample loading solutions, washing and elution solvents were thoroughly investigated. After optimization, 2% acetonitrile aqueous solution as the loading solution, 5% methanol aqueous solution as the washing solution and acetone containing 0.5% formic acid as the elution solvent presented an excellent purification efficiency for the five targets in Danshen. Under the optimal sample pretreatment conditions followed by analysis with ultra-high performance liquid chromatography-tandem mass spectrometry, satisfactory linearity (R-2 >= 0.991), high sensitivity (limit of quantification in the range of 1.20-4.80 mu g kg(-1)), good recovery (73.7-91.9%) and acceptable precision (RSD, 2.1-13.3%) were obtained. The applicability of the validated method was further verified in real Salviae miltiorrhiza Radix et Rhizoma samples. (C) 2016 Elsevier B.V. All rights reserved.
分类号: O65
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