一个基于异化物的Schiff基传感器用于选择性检测Pd2+离子
Jasbir Singh1, Shubham Saini2, Ravish K Chauhan3
1Department of Chemistry, Baba Mastnath University, Rohtak, 124021, India.
Journal of fluorescence
|November 16, 2023
概括
一个新的光探测器,TINH,可以选择性地检测高灵敏度的离子 (Pd2+). 这种基于异化的化合物具有较低的检测极限,因此适用于环境和工业应用.
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:
- 离子 (Pd2+) 在工业过程和环境监测中具有重要意义.
- 对Pd2+的选择性和敏感检测方法对于各种应用至关重要.
- 光探针在离子检测的灵敏度和选择性方面具有优势.
研究的目的:
- 为了开发一种基于异化的新型光探针, (E) -N'-(thiophen-2-ylmethylene) isonicotinohydrazide (TINH).
- 使用TINH进行选择性和敏感的离子 (Pd2+) 检测.
- 研究TINH-Pd2+复合物的结合机制和稳定性.
主要方法:
- 通过简单的凝结反应合成TINH.
- 紫外线可见吸收和光光谱学用于检测和表征.
- 红外 (IR) 和质谱 (MS) 用于结合分析.
- pH稳定性的实验.
主要成果:
- TINH证明了Pd2+离子的选择性检测,其低检测极限为4.102 × 10-11 M.
- 在TINH和Pd2+之间观察到高关联亲和力 (9.794 × 105 M-1).
- 可见紫外线的吸收增加,光发射在Pd2+结合时被灭.
- 在TINH-Pd2+复合体中证实了1:1的静止学比率.
- 该探测器成功地应用于真实水样.
结论:
- 开发的TINH探测器在选择性Pd2+检测方面非常有效.
- 探测器表现出极好的灵敏度和稳定性.
- 该系统在环境和工业环境中具有Pd2+监测的巨大潜力.
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