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纸质色度化学传感器用于在水和食品样本中高度敏感和选择性检测Cd2+

Seyed Hossein Mousavi¹, Asadollah Mohammadi², Mohammad Ali Zanjanchi¹

¹Department of Inorganic Chemistry, Faculty of Chemistry, University of Guilan, Rasht, Iran. zanjanchi@guilan.ac.ir.

Analytical methods : advancing methods and applications

|November 13, 2025

概括

一种新的纳夫thylamine-quinolinol化学传感器 (NAAMQ) 检测到具有明显颜色变化的 (Cd2+) 离子. 这种可重复使用的传感器具有很高的灵敏度,可以用于食品和水样.

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 (Cd2+) 构成重大环境和健康风险.
开发敏感和选择性化学传感器对于重金属检测至关重要.
现有的Cd2+检测方法可能很复杂,需要专门的设备.

研究的目的:

开发一种用于检测(II) 离子 (Cd2+) 的新型色度化学传感器.
描述化学传感器的结构和光学特性.
在现实世界样本矩阵中评估化学传感器的性能.

主要方法:

使用光谱技术 (CHN,NMR,FT-IR) 合成和结构验证 (E) - 2 - 甲基 - 5 - - 纳夫他林 - 1 - 伊尔迪亚泽尼尔) 林 - 8 - (NAAMQ) 化学传感器.
彩度和UV-Vis吸收光谱用于评估Cd2+检测.
确定约束常数,静态度比和检测极限 (LOD).
可重复使用性研究和测试条的开发,以实现实际应用.

主要成果:

在与Cd2+离子结合后,NAAMQ呈现出明显的颜色转变,从黄色到深紫.
紫外线-Vis光谱显示了人染色变化,表明具有Cd2+的复杂形成.
化学传感器显示Cd2+的线性响应范围为0.0225μM,低LOD为26.19nM.
使用EDTA的NAAMQ-Cd2+复合物解离允许传感器重复使用多达6次.
在食品和水样本中使用试卷检测Cd2+的成功应用.

结论:

开发的NAAMQ化学传感器是一种敏感,选择性和可重复使用的工具,用于对Cd2+离子的色度检测.
传感器能够在没有复杂仪器的情况下运行,并在真实样本中成功应用,这凸显了其实用性的实用性.
NAAMQ为环境监测和与污染有关的食品安全评估提供了一个有前途的方法.

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