可携带的Cu2+和thiram的比度光检测仪
Jiazhen Zhang1, Yicong Jia2, Xuan Tong1
1School of Physical and Electronic Information, Yunnan Normal University, Kunming, 650500, People's Republic of China.
Methods and applications in fluorescence
|April 8, 2024
概括
一个新的光纤传感器使用碳点和o-phenylenediamine检测铜 (II) 离子 (Cu2+) 和. 这种快速方法为这些常见污染物提供了敏感和可靠的食品安全分析.
科学领域:
- 分析化学 分析化学
- 材料科学 材料科学 材料科学
- 生物感应是一种生物感应.
背景情况:
- 食品污染物如铜 (II) 离子 (Cu2+) 和硫对人类健康构成重大风险.
- 快速,灵敏和可靠的检测方法对于确保食品安全至关重要.
- 现有的检测技术可能缺乏实时食品分析所需的速度,灵敏度或可靠性.
研究的目的:
- 开发一种新型的光纤比度光传感系统,用于同时检测Cu2+和thiram.
- 为了利用碳点 (CD) 和o-phenylenediamine (OPD) 为一个敏感和选择性的传感平台.
- 为了证明这种传感器在实际食品安全应用中的潜力.
主要方法:
- 构建一个光纤比度计光感应系统.
- 使用光共振能量转移 (FRET) 在碳点 (CD) 和氧化o-phenylenediamine (ox-OPD) 之间.
- 通过Cu2+诱导的OPD氧化和胺的抑制来研究CDs光的灭机制.
主要成果:
- 传感器表现出对Cu2+和锡兰的比度光反应.
- 检测范围为Cu2+的1100μM和兰的550μM.
- 达到Cu2+的0.392μM和thiram的0.522μM的低检测极限,在实际样本分析中成功应用.
结论:
- 开发的光纤传感器为检测Cu2+和thiram提供了灵敏和选择性的方法.
- 基于FRET的机制允许可靠的比度检测.
- 传感器显示出对现场和实时食品安全监测的承诺.
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