化学
荧光
高碘酸盐
转身(生物化学)
羧酸
糖精
聚合物
高分子化学
光化学
有机化学
生物化学
量子力学
医学
物理
内分泌学
作者
Shan Zhu,Qicheng Wang,Xiaomei Wang,Jiajun Pan,Tao Yang,Xin‐Hui Zhou,Hong‐Ping Xiao,Yujian You
出处
期刊:Inorganic Chemistry
[American Chemical Society]
日期:2023-09-27
卷期号:62 (40): 16589-16598
被引量:3
标识
DOI:10.1021/acs.inorgchem.3c02552
摘要
A luminescent 1D coordination polymer (CP) [Zn2L2(H2O)4]·H2O (1, H2L = 1-(4-carboxyphenyl)-1H-pyrazole-3-carboxylic acid) was prepared by a solvothermal method. 1 shows excellent fluorescence properties and has an obvious fluorescence "turn-on" phenomenon for saccharin (SAC), 2-thiazolidinethione-4-carboxylic acid (TTCA), and periodate (IO4-). Between 0 and 60 μM concentration range of SAC, the fluorescence enhancement efficiency (KEC) of 1 reaches 1.00 × 105 M-1 with the limit of detection (LOD) of 90 nM. 1 is the first CP-based sensing material for SAC detection. For TTCA detection, the KEC is 2.73 × 105 M-1 at the 25-80 μM concentration range, and the LOD is 33 nM, the lowest LOD among the sensors that detect TTCA at present. For IO4- ion detection, when the IO4- ion concentration ranges from 0 to 10 μM, the KEC is 2.34 × 105 M-1 and the LOD is as low as 39 nM. In order to better understand the sensing phenomenon, we also discuss in detail the sensing mechanisms for SAC, TTCA, and IO4- ions.
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