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在线染色学分析之前,在复杂样品中的磁场辅助管内固相微提取物种的单体基任务特定微提取列

Xiaochong Song¹, Mingming Peng¹, Qing Luo²

¹Fujian Provincial Key Laboratory for Coastal Ecology and Environmental Studies, Fujian Key Laboratory of Coastal Pollution Prevention and Control, College of the Environment and Ecology, Xiamen University, Xiamen 361005, China.

|December 20, 2023

概括

一种新的磁性微提取方法有效地分离了瓦纳物种V (IV) 和V (V) 进行准确的分析. 这种磁场辅助的管内固体相微提取 (MA-IT-SPME) 提供了一种敏感且高效的方法,用于微量的特异化.

科学领域:

分析化学分析化学
环境科学环境科学
材料科学材料科学材料科学

背景情况:

由于V (IV) 和V (V) 的毒性不同,的物种化是至关重要的.
有效的样本准备是准确量化的关键.
现有的方法可能缺乏效率或需要大量的有机溶剂.

研究的目的:

开发一种新的磁性微提取技术,用于的物种化.
为了提高V (IV) 和V (V) 分离的效率和灵敏度.
为使复杂矩阵中的痕迹分析能够使用HPLC/DAD进行在线连线.

主要方法:

在磁单体微提取柱 (MBMC) 与Fe3O4纳米颗粒的现场合成.
利用磁场辅助的管内固体相微提取 (MA-IT-SPME) 进行V(IV) -EDTA和V(V) -EDTA合物.
使用二极管阵列检测 (HPLC/DAD) 的高性能液体染色学MA-IT-SPME系统的在线连接.

主要成果:

磁场显著提高了V(IV) -EDTA (55.7%-90.0%) 和V(V) -EDTA (80.1%) 的提取效率.
达到低检测极限 (0.054-0.060μg/L在水中,1.4-1.5μg/kg在蔬菜中).
证明了高峰恢复率 (82.5%至118%) 和良好的反干扰能力.

结论:

开发的MBMC@MA-IT-SPME-HPLC/DAD系统提供了一种自动化,成本效益高,敏感的分类方法.
这种技术尽量减少有机溶剂的使用,与绿色化学原则保持一致.
该系统是复杂的环境和食品样本中分析痕迹V (IV) 和V (V) 的竞争性方法.

关键词:

强化磁场的管内固体相微提取技术一个单一的石头.规格分析规格分析瓦纳迪乌姆物种 (Vanadium) 的一个物种.蔬菜蔬菜是一种蔬菜.水水水水水,这是一个很好的方法.

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