一个基于内部波器效应的尖和选择性的光纸质传感器,用于在食品矩阵中比度检测四种苏丹染料
Tian Shi1, Jinyuan Zhang1, Fuhua Gao1
1State Key Laboratory of Optoelectronic Materials and Technologies, Sun Yat-Sen University, Guangzhou 510006, China; School of Materials Science and Engineering, Sun Yat-Sen University, Guangzhou 510006, China.
Food chemistry
|February 4, 2024
概括
这项研究引入了一个快速的8分钟光条带,用于检测食品中的致癌性苏丹染料. 这种新的方法提供了高灵敏度和选择性,以确保食品安全和预防健康风险.
科学领域:
- 分析化学 分析化学
- 材料科学 材料科学 材料科学
- 食品安全 食品安全
背景情况:
- 苏丹染料是致癌的食品添加剂,具有重大健康风险.
- 准确和快速的检测方法对于识别这些非法污染物至关重要.
研究的目的:
- 开发一种选择性和敏感的比度光带,用于检测四种类型的苏丹染料.
- 提供一种低成本,便携式的方法来分析复杂的食品矩阵中的非法添加剂.
主要方法:
- 使用核心外上转换颗粒 (NaYF4:Yb,Tm@NaYF4:Yb,Er),金属有机框架和双模板分子打印聚合物制造一个比度流星条.
- 利用内部波器效应进行染料检测.
- 优化材料性能,以提高灵敏度和选择性.
主要成果:
- 开发的条带在8分钟的时间内实现了四种苏丹染料的选择性和敏感检测.
- 金属有机框架的高吸附能力和光谱重叠增强了信号响应.
- 在粉中达到低检测极限 (29.8751.02 ng/g),复原率高 (93.32103.4%),相对标准偏差低 (≤4.3%).
结论:
- 分度光条带提供了一种高度选择性,灵敏和快速的方法来检测多种非法苏丹染料.
- 这种方法为食品安全监测提供了具有成本效益和便携性的解决方案.
- 该方法显示了在复杂样品中检测各种非法添加剂的广泛应用潜力.
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