单宁酸
没食子酸
荧光
化学
多酚
选择性
色谱法
生物化学
抗氧化剂
有机化学
量子力学
物理
催化作用
作者
Jiakui Tang,Mingxiu Wang,Yuting Wang,Nan Yin,Guixin Qin,Xueting Yang,Huan Liu,Bin Han,Qingling Xu,Xin Yao
标识
DOI:10.1016/j.snb.2023.135174
摘要
Tannic acid (TA) is a natural polyphenolic compound widely distributed in plants and is extensively associated with medicine, food and leather. In this study, we developed a highly sensitive turn-on fluorescent probe for TA using an ensemble of 6,7-dihydroxycoumarin (DHC) and Fe3+ (DHC-Fe). DHC-Fe exhibited high selectivity over gallic acid and vitamin C, which avoided sample pretreatment so that simplified the detection process. Furthermore, DHC-Fe was successfully applied to detect TA in vegetable-tanned leather and in beverage samples. A portable paper-based TA sensor was prepared and allowed simple detection.
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