一个创新的选择性光传感器,用于量化饮料中的危险食品染料红,使用添加碳量子点
1Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Al-Azhar University, Assiut branch, Assiut, 71524, Egypt. bahersalman@azhar.edu.eg.
Journal of fluorescence
|June 17, 2023
概括
一种新方法精确量化了饮料中的危险的 Allura red (AR,E129) 染料,使用添加碳量子点 (N@CQDs). 这种简单而敏感的技术为食品安全应用提供了可靠的检测.
科学领域:
- 分析化学 分析化学
- 材料科学 材料科学 材料科学
- 食品科学 食品科学 食品科学
背景情况:
- 红 (AR,E129) 是一种广泛用于食品中的合成染料.
- 准确量化AR对于确保食品安全和监管合规至关重要.
- 现有的AR检测方法可能缺乏灵敏度,选择性或简单性.
研究的目的:
- 开发和验证一种简单,灵敏和有选择性的方法来量化饮料中的 Allura red (AR,E129).
- 使用微波辅助化碳量子点 (N@CQDs) 作为一种新型传感材料.
- 根据ICH标准来描述N@CQD并验证分析方法.
主要方法:
- 通过微波辅助从廉价来源开发化碳量子点 (N@CQDs).
- 基于N@CQDs在pH3.2的光火效应的AR量化.
- 使用HR-TEM,XPS,Zeta潜力,光,UV-VIS和FTIR光谱学进行N@CQD的表征.
- 使用ICH标准验证方法.
主要成果:
- N@CQDs表现出高量子产量 (36.60%) 并进行了彻底的特征.
- 开发的方法显示出出色的线性 (0.0710.0μg mL-1),回归系数为0.9992.2.
- 在445nm时N@CQDs的光强度 (在350nm时激发) 在与AR相互作用时灭.
- 该方法已成功应用于在饮料样本中高精度量化AR.
结论:
- 成功开发了一种用于饮料中的 Allura red (AR,E129) 定量化的新,具有成本效益和高效率的方法.
- 用添加的碳量子点 (N@CQDs) 是有效的光探针,用于检测AR.
- 经过验证的方法为监测食品中的AR水平提供了可靠的工具,确保了消费者的安全.
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