分子打印异构结构辅助激光吸附离子化质谱分析和成像诺的质谱分析和成像
Ruya Wang1,2, Weidong Zhang1, Weiqiang Liang3
1School of Pharmaceutical Sciences, Jilin University, Changchun 130021, China.
ACS applied materials & interfaces
|March 29, 2024
概括
一种新方法使用了一种新型分子印记异构连接 (MIP-TNs@GCNs) 矩阵,用于敏感检测类残留物. 这种方法使环境污染物的快速,具体和高通量分析成为可能,改善了生态和人类健康监测.
科学领域:
- 分析化学 分析化学
- 材料科学 材料科学 材料科学
- 环境科学 环境科学
背景情况:
- 来自新陈代谢和废物中的诺残留物构成生态和健康风险.
- 对诺的环境监测对于风险评估和减轻至关重要.
- 现有的检测方法可能缺乏所需的灵敏度,特异性或吞吐量.
研究的目的:
- 开发一种高效和灵敏的方法来检测诺残留物.
- 使用一种新的分子印记异构连接 (MIP-TNs@GCNs) 作为MALDI/MS.的矩阵.
- 为了实现特定的,快速的,高吞吐量的化和诺的分析.
主要方法:
- 制造一个分子印记的异构连接 (MIP-TNs@GCNs) 矩阵.
- 分子印记二氧化纳米片 (MIP-TNs) 和石墨烯类碳化物 (GCNs) 的结合.
- 应用MIP-TNs@GCNs矩阵在矩阵辅助激光脱/电离质谱法 (MALDI/MS) 中,用于醇检测和成像.
主要成果:
- MIP-TNs@GCNs异构连接显示了高光吸收和电离效率.
- 实现了良好的线性 (R2 > 0.99),低检测极限 (0.1 pg/μL) 和良好的可重现性 (RSD < 15%).
- 证明了高盐和蛋白质耐药性,并成功地可视化了植物样本中诺的空间分布.
结论:
- 开发的MIP-TNs@GCNs-MALDI/MS方法对于诺残留分析是高效和敏感的.
- 新的异质连接矩阵为电离和检测提供了卓越的性能.
- 这种方法对环境监测和小分子成像应用具有重大前景.
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