作为环境质谱元素的基功能化共价有机框架,用于快速丰富,电离和检测胺除草剂在阿斯特拉类植物中
Qin He1,2,3, Minli Yang1,3, Xiujuan Wang1,3
1Institute of Food Safety, Chinese Academy of Inspection and Quarantine, Beijing, 100176, China.
Mikrochimica acta
|June 12, 2025
概括
一种新方法在不钢上使用功能化的共价有机框架,用于快速,灵敏地检测七种胺除草剂. 这种方法简化了样品准备,并减少了有机溶剂的使用,以加快分析.
科学领域:
- 分析化学 分析化学
- 材料科学 材料科学 材料科学
背景情况:
- 胺除草剂带来环境和健康风险,需要敏感的检测方法.
- 现有的方法通常涉及复杂的样本准备和漫长的分析时间.
- 需要快速,高效和环保的除草剂监测技术.
研究的目的:
- 开发一种新,快速和灵敏的方法,同时检测七种胺除草剂.
- 为了利用在不钢基板 (SSS) 上涂覆的基功能化共价有机框架 (COF),用于分析剂的丰富和电离.
- 为了加快分析,将COF-SSS与环境质谱 (AMS) 集成.
主要方法:
- 用于固相微提取 (SPME) 的COF涂层不钢基板 (COF-SSS) 的制造.
- 高压电力的应用与环境质谱 (AMS) 结合用于同时检测.
- 对七种特定的胺除草剂进行分析:阿拉,甲,乙,前,布塔,纳胺和.
主要成果:
- 在1.5分钟内,在阿斯特拉加卢斯样本中同时检测到7种胺除草剂.
- 该方法在0.05-100μg/kg的范围内显示出出色的线性 (R2>0.9916).
- 获得了低检测值 (0.03-0.1μg/kg) 和量化值 (0.1-0.4μg/kg),复原率高 (85.17%-104.09%) 和低RSD (<8.32%).
结论:
- COF-SSS-AMS方法提供了一种简化的样品预处理,加速检测和减少有机试剂消耗.
- COF-SSS材料具有卓越的可重复使用性 (至少7次) 和批次重复性.
- 这种新的方法为同时监测胺除草剂提供了可靠和高效的工具.
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