黄曲霉毒素
检出限
重复性
再现性
荧光
选择性
线性范围
猝灭(荧光)
分析化学(期刊)
化学
发光
材料科学
色谱法
光电子学
食品科学
有机化学
光学
物理
催化作用
作者
Fuxiang Wang,Zuopeng Li,Hongping Jia,Riyu Lu,Sanbing Zhang,Canping Pan,Zhiqiang Zhang
出处
期刊:Food Chemistry
[Elsevier]
日期:2022-07-01
卷期号:383: 132389-132389
被引量:29
标识
DOI:10.1016/j.foodchem.2022.132389
摘要
A turn-on fluorescent sensing platform based on an ultralow concentration of Al-metal organic frameworks for the detection of aflatoxin B1 has been developed for the first time. This fluorescence turn-on sensor exhibits the largest fluorescence enhancement (or quenching) constant value of 179404 M-1 among all luminescence-based chemical sensors reported till date. Moreover, the sensor afforded a rapid detection of aflatoxin B1, with a linear response in the concentration range of 0.05-9.61 μM and a low detection limit of 11.67 ppb. Additionally, the fabricated sensor showed good repeatability, reproducibility, stability, and selectivity. Most importantly, the practical application of this sensor has been demonstrated by detecting aflatoxin B1 in complex tea samples with low relative standard deviation (≤7.72%; n = 3) and satisfactory recoveries. In summary, the proposed method has great potential as a simple, sensitive and selective strategy for monitoring aflatoxin B1 in food samples.
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