检出限
化学
荧光
硼酸
没食子酸
没食子酸丙酯
猝灭(荧光)
线性范围
配体(生物化学)
金属有机骨架
没食子酸甲酯
组合化学
核化学
光化学
色谱法
有机化学
没食子酸
生物化学
抗氧化剂
吸附
量子力学
物理
受体
作者
Dongyan Chen,Zisen Wu,Yize Zhang,Dong Liu,Jie Wei,Tianhui Jiao,Qingmin Chen,Munetaka Oyama,Quansheng Chen,Xiaomei Chen
出处
期刊:Food Chemistry
[Elsevier]
日期:2023-08-01
卷期号:418: 136012-136012
被引量:7
标识
DOI:10.1016/j.foodchem.2023.136012
摘要
This study reports the development of a Tb-metal-organic framework (Tb-MOF)-based fluorescent platform for the detection of propyl gallate (PG). The Tb-MOF using 5-boronoisophthalic acid (5-bop) as the ligand exhibited multiple emissions at 490, 543, 585, and 622 nm under an excitation wavelength of 256 nm. The fluorescence of Tb-MOF was selectively and significantly weakened in the presence of PG due to the special nucleophilic reaction between the boric acid of Tb-MOF and o-diphenol hydroxyl of PG, and the combined effect of static quenching and internal filtering. Furthermore, this sensor enabled the determination of PG within seconds in a wide linear range of 1-150 μg/mL, and with a low detection limit of 0.098 μg/mL, and high specificity against other phenolic antioxidants. This work provided a new route for the sensitive and selective determination of PG in soybean oil, thus was perspective to monitor and reduce the risk of PG overuse.
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