一个碳基诺林衍生的希夫基化学传感器:晶体结构,选择性Hg2+离子检测及其计算研究研究
Franklin Ebenazer Ambaison1, Selva Kumar Ramasamy2, Sampathkumar Natarajan1
1Post-Graduate and Research Department of Chemistry, Chikkanna Government Arts College, Tiruppur-641 602, Tamil Nadu, India.
Environmental research
|May 1, 2024
概括
一个新的化学传感器 (L) 检测有毒 (Hg2+) 离子具有高选择性和灵敏度. 这种基于纸张的视觉测试可以在现场快速监测污染的环境.
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:
- (Hg2+) 离子污染对生物有机体构成重大风险.
- 开发有选择性,敏感和快速检测有毒金属离子的材料对于环境监测至关重要.
- 现有的方法往往缺乏实时分析所需的特异性和速度.
研究的目的:
- 合成和描述一种用于选择性检测 (Hg2+) 离子的新型化学传感器.
- 为了评估化学传感器在半水溶液中的灵敏度,特异性和响应时间.
- 开发一种实用,现场检测离子的方法,使用纸质测试套件.
主要方法:
- 通过凝结反应合成化学传感器2-imino [N - (N-amido phenyl) ]-6-methoxy-3-carbethoxy quinoline (L) 的合成.
- 使用NMR,FTIR,ESI-Mass和SCXRD分析进行全面的表征.
- 用光谱光度分析来确定选择性,灵敏度,检测极限,以及使用Hg2+离子复杂的固态度.
主要成果:
- 合成的探头L显示出对Hg2+离子的极佳特异性和灵敏性,其低检测极限为0.185μM.
- 探测器L在与Hg2+离子结合后,呈现出明显的视觉颜色变化,从无色到浅黄色.
- 形成了一个1:1的固体测量复合体,其关联常数 (Ka) 为6.74 × 104M-1,H NMR和DFT计算阐明了传感机制.
- 一个廉价的,基于纸质的测试套件成功地开发出来,用于现场检测.
结论:
- 新型化学传感器L为环境样本中离子的准确和可视检测提供了一个有前途的工具.
- 开发的纸质套件为现场监测提供了一种简单,经济有效和快速的方法.
- 这项研究通过改进有毒金属离子检测策略,有助于推进环境安全.
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