Triazole-stabilized fluorescence sensor for highly selective detection of copper in tea and animal feed

文献类型： 外文期刊

第一作者： Qiu, Suyan

作者： Qiu, Suyan;Wei, Yihua;Tu, Tianhua;Xiang, Jianjun;Zhang, Dawen;Chen, Qinglong;Luo, Linguang;Lin, Zhenyu

作者机构：

关键词： Fluorescence sensor; Tris-(benzyltriazolylmethyl)amine; Copper detection; High reproducibility; Tea; Chicken feed

期刊名称：FOOD CHEMISTRY （ 影响因子：7.514； 五年影响因子：7.516 ）

ISSN： 0308-8146

年卷期： 2020 年 317 卷

页码：

收录情况： SCI

摘要： A triazole-stabilized fluorescence sensor is developed for copper detection in the study. Tris-(benzyltriazolylmethyeamine (TBTA) is used to improve the sensitivity and stability for the sensing system. A series of comparative experiments are performed with and without TBTA. In the presence of TBTA, the fluorescence decrease ratio is enhanced from 2.46 to 118.25; the detection limit is reduced from 67 nM to 3.6 nM; the higher selectivity toward copper compared to the other metal ions is verified, including K+, Ca2+, Cd (2+), Zn2+, Mg2+, Mn2+, Pb2+, Hg2+, Fe3+ and Cr3+. Besides, the sensing system is successfully applied for copper determination in complex tea samples and chicken feed samples with the recovery range of 91.67-116.8%. A good consistency between the presented sensor and the flame atom absorbance spectrometry (FAAS) is confirmed by the low relative errors with the range from -2.39% to 7.02%.

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