在粘合剂中嵌入混合吸附剂:具有广泛的提取覆盖面的固态微提取涂层及其在环境水分析中的应用
Wei Zhou1, Kai Hu1,2, Yuanpeng Wang1
1Department of Chemistry, University of Waterloo, Waterloo, ON N2L 3G1, Canada.
Environmental science & technology
|December 21, 2023
概括
一种新的混合涂层固相微提取 (SPME) 装置有效地分析各种水污染物. 这种多功能工具增强了对各种污染物的环境水质评估.
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:
- 固相微提取 (SPME) 对于水的分析至关重要,但在多种污染物的提取覆盖面上面临限制.
- 现有的SPME设备往往难以有效地同时提取广泛的极性,非极性和带电化合物.
研究的目的:
- 开发一种新的SPME涂层策略,使用吸附剂颗粒混合物进行全面的水分析.
- 创建一个单一的SPME设备,能够提取各种环境污染物,包括极地,非极地和充电物种.
主要方法:
- 通过将疏水/脂性平衡 (HLB),HLB-弱阴离子交换 (HLB-WCX) 和HLB-弱阴离子交换 (HLB-WAX) 吸附剂颗粒与聚烯二 (PAN) 粘合剂混合,制备SPME叶片.
- 开发了三种分析方法:高通量SPME-LC-MS/MS,瓶装SPME-LC-高分辨率MS (HRMS) 和现场无人机采样SPME-LC-HRMS.
- 混合涂层的矩阵兼容性和多孔过器特性.
主要成果:
- 混合涂层的SPME装置证明了对极性和非极性以及正负电荷化合物的有效提取.
- 在滥用药物和人工甜味剂的定量分析中的成功应用,以及水中的有机污染物的无针对性选.
- PAN粘合剂提供了矩阵兼容性,并作为一个多孔过器,防止大分子的污染.
结论:
- 开发的混合涂层SPME设备为全面的环境水分析提供了多功能和高效的解决方案.
- 这一策略允许使用单一的多功能SPME设备进行可靠的水质评估.
- 与LC-MS/MS和HRMS平台的集成有助于有针对性和无针对性的污染物选.
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