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基于Ferrofluid的单步磁辅助液-液微提取,用于用GC-MS/MS测定植物油中的Pyrethroid残留物
Jingjing Yu1, Yuxin Liu1,2, Cong Wang1
1Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou 450001, PR China.
一种新型的基于深度环氧化溶剂的铁流体 (DES-FFs) 材料有效地从植物油中提取15种甲基. 这种磁性材料为农药分析提供了快速分离和高灵敏度.
科学领域:
- 分析化学 分析化学
- 材料科学 材料科学 材料科学
- 环境科学 环境科学
背景情况:
- 对食品中的农药残留物分析对于消费者安全至关重要.
- 传统的化物提取方法可能是耗时和复杂的.
- 开发有效和敏感的分析技术来确定农药是必不可少的.
研究的目的:
- 开发和表征一种基于深度浸溶剂的新型铁流体 (DES-FFs) 材料.
- 为了利用DES-FFs进行单步磁辅助液体-液体微提取 (MALLME) 的铁 (PYs).
- 使用GC-MS/MS. 在植物油样本中确定15个PY.
主要方法:
- 制备Fe3O4磁芯与三元胆化物/醇/氨酸DES相结合.
- 合成的DES-FFs在磁性辅助液体-液体微提取中的应用.
- 使用气体染色学-质谱学/质谱学 (GC-MS/MS) 来分析提取的铁.
- 使用HRTEM,XRD,FTIR和TGA进行全面的材料表征.
主要成果:
- 开发的DES-FF表现出极好的体稳定性和快速相位分离 (<10秒).
- 由于增强的π-π堆叠和最佳的水友性-极性匹配,可以实现15个PY的高提取效率.
- 该方法表现出高灵敏度 (LODs:0.91-3.03 ng/mL),低矩阵效应和良好的精度 (RSD ≤6.92%).
- 在精炼和原油植物油中成功确定了15个PY,回收率从79.88%到107.90%不等.
结论:
- 这种新型的DES-FFs材料对于从植物油中快速而灵敏地提取甲基是有效的.
- 开发的磁辅助微提取方法为农药残留分析提供了一个有希望的替代方案.
- 这种方法有助于改善食品安全监测,因为它可以准确量化类药物.
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