基于ESIPT-AIE-active的快速和特定的光探针用于在食品和环境样本中定量检测铜离子
Xiaomei Ren1, Ji Liu2, Yating Zhang1
1Collaborative Innovation Center for Modern Grain Circulation and Safety, Jiangsu Province Engineering Research Center of Edible Fungus Preservation and Intensive Processing, College of Food Science and Engineering, Nanjing University of Finance and Economics, Nanjing, 210023, China.
Talanta
|April 22, 2025
概括
研究人员开发了一种新的光探针 (L-3),用于快速准确地检测食品中的铜离子 (Cu2+). 这种探测器具有高灵敏度和选择性,增强了食品安全分析和消费者意识.
科学领域:
- 分析化学 分析化学
- 食品科学 食品科学 食品科学
- 环境科学 环境科学
背景情况:
- 精确监测铜离子 (Cu2+) 对食品安全和生物健康至关重要.
- 现有的Cu2+分析技术可能缺乏实时食品分析所需的速度或灵敏度.
研究的目的:
- 合成和评估新的光探针,用于在食品样本中敏感和选择性检测Cu2+.
- 开发一种易于使用的方法来量化食品中的Cu2+,改进食品安全评估.
主要方法:
- 两个希夫基光探头L-2和L-3的合成.
- 谱分析以确定探头性能,包括检测极限,响应时间和反干扰能力.
- 使用感应合等离子体质谱法 (ICP-MS) 验证探头精度.
- 开发一个微信小程序,用于直观的Cu2+检测.
主要成果:
- 探测器L-3表现出优越的抗干扰能力和对Cu2+检测的高灵敏度.
- L-3 显示了低检测极限 (LOD = 92.79 nM) 和量化极限 (LOQ = 309.33 nM),反应时间快 (<30秒).
- 在食品和环境样本中实现了Cu2+的准确和精确量化,准确度在84.42%至117.45%之间,相对标准偏差<6.0%.
- 开发的微信迷你程序为消费者提供了一个直观的平台,以评估食品安全的铜含量.
结论:
- 光探针L-3是快速,灵敏和选择性检测Cu2+在食品和环境样本中的高效工具.
- 将L-3与移动应用程序集成,为实时监控食品安全提供了一个实用且易于使用的解决方案.
- 探测器L-3显示了在生物系统中可视化Cu2+的潜力,突出了其多功能性.
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