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在果汁中的PCB的磁性固体提取,基于聚氨改性CoFe₂O₄@Ti₃C₂复合材料

Jingwen Niu¹, Liushan Jiang¹, Linchun Nie¹

¹College of Chemical Engineering and Environment, China University of Petroleum-Beijing, Beijing 102249, China.

|October 20, 2024

概括

一种新的磁性复合材料有效地检测水果果汁中的多二 (PCB),使用磁性固相提取和气相色谱-双重质谱. 这种简单,高效的方法为环境和食品安全分析提供了较低的检测极限.

科学领域:

环境化学环境化学
分析化学分析化学
材料科学材料科学材料科学

背景情况:

多双 (PCB) 是一种在各种环境和食品基质中发现的持久性有机污染物.
在诸如果汁之类的复杂样品中精确检测PCB,需要敏感且高效的分析方法.
现有的PCB检测方法可能很复杂,或缺乏足够的灵敏度来进行微量分析.

研究的目的:

开发一种用于提取PCB的新型磁性复合材料.
建立一个有效和简单的分析方法来确定果汁中的PCB.
为了验证该方法用于微量PCB检测的性能.

主要方法:

一种磁性复合物的合成:CoFe2O4@Ti3C2@PANI,它结合了磁性,水友性和吸附性.
开发一种利用合成复合材料的磁性固相提取 (MSPE) 技术.
结合MSPE与气色谱-并联质谱 (GC-MS/MS) 进行PCB测定.

主要成果:

在CoFe2O4@Ti3C2@PANI复合物中,PCB被有效吸附.
开发的MSPE-GC-MS/MS方法实现了9个目标PCB的低检测极限 (LODs),从0.4到0.8 ng/L不等.
实体饮料样本中尖端恢复率很好,从77.2%到104.7%不等.

结论:

磁性复合材料CoFe2O4@Ti3C2@PANI是用于PCB提取的高效材料.
开发的MSPE-GC-MS/MS方法对于分析水果汁中的PCB是简单,高效和可靠的.
这种方法在食品,环境和其他相关领域对PCB监测具有重大潜力.

关键词:

饮料饮料饮料饮料气体染色学-并联质谱学质谱学这就是MXene MXene.通过磁性丰富进行了磁性丰富.聚化双烯的多种类型.

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