切片层COFs-气凝:一种再生分散的固相提取吸附剂,用于测定超微量类抗生素
Qiulin Li1, Simin Zhu2, Fang Wu3
1School of Materials Science and Engineering, Suzhou University of Science and Technology, Suzhou, 215011, People's Republic of China. liqiulin1001@126.com.
Mikrochimica acta
|August 25, 2023
概括
一种新的共价有机框架 (COFs) 气凝有效地从水和蜂蜜中提取类抗生素 (QA). 这种方法提供了灵敏的检测,以改善环境和食品安全监测.
科学领域:
- 材料科学 材料科学 材料科学
- 分析化学 分析化学
- 环境科学 环境科学
背景情况:
- 昆类抗生素 (QA) 是水和食品中普遍存在的污染物.
- 开发敏感和高效的质量保证检测方法对于环境和食品安全至关重要.
研究的目的:
- 制造一种新的共价有机框架 (COFs) 气凝,用于QAs的分散固相提取 (dSPE).
- 开发一种敏感的分析方法来确定水和蜂蜜样本中的QA.
- 通过密度函数理论 (DFT) 研究COFs气凝和QA之间的相互作用机制.
主要方法:
- 制造COFs气凝.气凝的制造.
- 在dSPE中应用COFs气凝用于QA提取.
- 使用高性能液体染色学-并联质谱法 (HPLC-MS/MS) 开发一种分析方法.
- 密度函数理论 (DFT) 计算用于相互作用机制的研究.
主要成果:
- 由于层内键和π-π相互作用,COFs气凝对QA具有强烈的吸附亲和力.
- 开发的方法显示了广泛的线性 (0.1-500 ng·L-1),低的检测极限 (0.02-0.06 ng·L-1),以及良好的精度 (RSD <10%).
- 在水和蜂蜜样本中有效检测QA,回收率很好 (分别为68.2-104%和64.0-100%).
结论:
- COFs气凝是QA的dSPE的一个有前途的材料.
- 开发的分析方法对于监测环境和食品样本的质量保证具有敏感性和可靠性.
- COFs气凝具有捕获污染物和解决环境和食品安全问题的巨大潜力.
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