基于罗丹明6G-硫脲共轭物的高灵敏度和高选择性汞离子开启型荧光探针
Highly Sensitive and Selective Turn-on Fluorescent Probe for Hg Based on Rhodamine 6G-Thiourea Conjugate.
作者信息
Ding Ying-Zi, Gong Hui-Li, Wang Kun-Peng
机构信息
College of Information Science and Engineering, Ocean University of China, Qingdao, 266001, People's Republic of China.
College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, 266042, People's Republic of China.
出版信息
J Fluoresc. 2017 May;27(3):1095-1099. doi: 10.1007/s10895-017-2044-z. Epub 2017 Feb 23.
An easily available novel fluorescent probe based on rhodamine 6G-thiourea conjugate (RGTU) has been synthesized. Upon mixed with Hg in CHCN-HO (1:9, v/v), the dramatic enhancement of fluorescence intensity as well as the color change of the solution were observed. The presence of common coexisting alkali, alkaline earth, and transition metal ions showed small or no interference with the detection of Hg. The Job's plot and H NMR spectra indicated that Hg induced spirolactam open to form 1:1 complex between RGTU and Hg.
合成了一种基于罗丹明6G-硫脲共轭物（RGTU）的易于获得的新型荧光探针。当在CHCN-H₂O（1:9，v/v）中与Hg混合时，观察到荧光强度显著增强以及溶液颜色变化。常见共存的碱金属、碱土金属和过渡金属离子的存在对Hg的检测显示出很小的干扰或无干扰。Job曲线和¹H NMR光谱表明，Hg诱导螺内酰胺开环，在RGTU和Hg之间形成1:1配合物。
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