检出限
孔雀绿
荧光
色谱法
线性范围
毒品检测
化学
计算机科学
量子力学
物理
吸附
有机化学
作者
Xiaoyue Yue,Yan Li,Sheng Xu,Junguang Li,Min Li,Liying Jiang,Mingsha Jie,Yanhong Bai
出处
期刊:Food Chemistry
[Elsevier]
日期:2022-03-01
卷期号:371: 131164-131164
被引量:77
标识
DOI:10.1016/j.foodchem.2021.131164
摘要
Developing intelligent, sensitive, and visual methods for rapidly detecting veterinary drug residues is essential for ensuring food quality and safety. A portable smartphone-assisted ratiometric fluorescent sensor was successfully designed using fluorescent Al-MOF nanosheet and rhodamine B (RhB) as fluorescent probes to adjust to the requirement of malachite green (MG) detection. The developed ratiometric fluorescent sensor allowed sensitive and selective detection of MG with good linear relationships in a wide range of 0.5-200 μg/mL. The Quantitative linearrange is 5.3 μg/mL to 200 μg/mL. The limit of detection (LOD) and limit of quantification (LOQ) were calculated to be 1.6 μg/mL and 5.3 μg/mL respectively. The practicability of the proposed method was verified using high performance liquid chromatography (HPLC) in spiked fish tissues with satisfying recoveries and RSD. Moreover, portable smartphone-assisted fluorescent test papers were fabricated for the intelligent detection of MG. This integration of smartphones and fluorescent test papers was economical and saved time, providing an alternative strategy for the qualitative discernment and semi-quantitative analysis of MG on-site.
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