Triazole-stabilized fluorescence sensor for highly selective detection of copper in tea and animal feed
文献类型： 外文期刊
作者： Qiu, Suyan 1 ; Wei, Yihua 1 ; Tu, Tianhua 1 ; Xiang, Jianjun 1 ; Zhang, Dawen 1 ; Chen, Qinglong 1 ; Luo, Linguang 1 ; Li 1 ;
作者机构： 1.Jiangxi Acad Agr Sci, Inst Qual & Safety & Stand Agr Prod Res, Lab Qual & Safety Risk Assessment Anim Prod Nanch, Minist Agr & Rural Affairs, Nanchang 330200, Jiangxi, Peoples R China
2.Fuzhou Univ, Dept Chem, MOE Key Lab Anal & Detect Food Safety, Fujian Prov Key Lab Anal & Detect Technol Food Sa, Fuzhou 350002, Fujian, Peoples R China
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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