用于选择性检测铁离子和镍离子的吖啶基荧光化学传感器。
Acridine-based fluorescence chemosensors for selective sensing of Fe and Ni ions.
作者信息
Wang Chaoyu, Fu Jiaxin, Yao Kun, Xue Kun, Xu Kuoxi, Pang Xiaobin
机构信息
Engineering Laboratory for Flame Retardant and Functional Materials of Hennan Province, College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, China; Institute of Environmental and Analytical Sciences, Henan University, Kaifeng, Henan 475004, China.
Engineering Laboratory for Flame Retardant and Functional Materials of Hennan Province, College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, China.
出版信息
Spectrochim Acta A Mol Biomol Spectrosc. 2018 Jun 15;199:403-411. doi: 10.1016/j.saa.2018.03.015. Epub 2018 Mar 9.
Two novel acridine-based fluorescence chemosensors (L1 and L2) were prepared and their metal ions sensing properties were investigated. L1 (L2) exhibited an excellent selective fluorescence response toward Fe (Ni) and the stoichiometry ratio of L1-Fe and L2-Ni were 1:1. The detection limits of L1 and L2 were calculated by the fluorescence titration to be 4.13μM and 1.52μM, respectively, which were below the maximum permissive level of Fe and Ni ions in drinking water set by the EPA. The possible mechanism of the fluorescence detection of Fe and Ni had been proposed according to the analysis of Job's plot, IR spectra and ESI-MS. The determination of Fe and Ni ions in living cells had been applied successfully.
制备了两种新型的基于吖啶的荧光化学传感器（L1和L2），并研究了它们对金属离子的传感性能。L1（L2）对Fe（Ni）表现出优异的选择性荧光响应，L1-Fe和L2-Ni的化学计量比均为1:1。通过荧光滴定法计算得出L1和L2的检测限分别为4.13μM和1.52μM，低于美国环境保护局设定的饮用水中Fe和Ni离子的最大允许含量。根据Job曲线、红外光谱和电喷雾电离质谱分析，提出了Fe和Ni荧光检测的可能机制。已成功应用于活细胞中Fe和Ni离子的测定。
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