一种新的光学化学传感器,用于在食品和环境样本中测定
Alaa S Amin1, Mostafa Y Nassar2
1Chemistry Department, Faculty of Science, Benha University Benha Egypt asamin2005@hotmail.com +00201205225223.
RSC advances
|January 15, 2026
概括
为敏感的 (Ge4+) 检测而开发了一种新的色度计光极. 这个可重复使用的工具准确地量化了食品和环境样本中的,具有很高的选择性.
科学领域:
- 分析化学 分析化学
- 材料科学 材料科学 材料科学
背景情况:
- (Ge4+) 检测对于环境和食品安全监测至关重要.
- 现有的Ge4+检测方法可能是复杂和耗时的.
研究的目的:
- 为选择性和敏感检测离子 (Ge4+) 开发一种新的色度测量光极.
- 在预度,响应时间,选择性和可重复使用性方面评估光极的性能.
主要方法:
- 在一个纤维素三酸盐 (CTA) 基质中,将2-((((3,5-dimercapto-4H-1,2,4-triazole-4-yl) imino) methyl) (DMTMP) 和Aliquat-336 纳入.
- 从水样中的Ge4+预度在λmax=545nm时进行色度分析.
- 优化pH值,平衡时间,评估其他离子的干扰.
主要成果:
- 开发的光极显示了Ge4+的定量预度与明显的颜色变化.
- 在5.00分钟内在酸盐介质和25.0分钟内在pH7.50的自然水中达到最佳预度.
- 观察到高选择性,没有明显的干扰超过750倍的潜在干扰离子的度.
- 在6.00至174 ng mL-1范围内检测Ge4+的线性响应,检测和量化极限分别为1.75和5.75 ng mL-1.
- 这种光极被证明是可重复使用的.
结论:
- 开发的色度测量光极是准确和选择性检测的有效工具.
- 它的可重复使用性和高灵敏性使其适合在食品和环境样本中分析.
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