一种基于喹啉-香豆素的高灵敏度和高选择性铅化学传感器。
A highly sensitive and selective chemosensor for Pb based on quinoline-coumarin.
作者信息
Meng Xianjiao, Cao Duanlin, Hu Zhiyong, Han Xinghua, Li Zhichun, Ma Wenbing
机构信息
School of Chemical Engineering and Technology, North University of China Taiyuan 030051 P. R. China
National Demonstration Center for Experimental Comprehenisve Chemical Engineering Education, North University of China Taiyuan 030051 P. R. China.
出版信息
RSC Adv. 2018 Oct 2;8(59):33947-33951. doi: 10.1039/c8ra04935a. eCollection 2018 Sep 28.
In this study, a highly sensitive and selective fluorescent chemosensor, ethyl()-2-((2-((2-(7-(diethylamino)-2-oxo-2-chromene-3-carbonyl)hydrazono)methyl)quinolin-8-yl)oxy)acetate (1), was synthesized and characterized by H NMR, C NMR and ESI-MS. Sensor 1 showed an "on-off" fluorescence response to Pb with a 1 : 1 binding stoichiometry in CHCN/HEPES buffer medium (9 : 1 v/v). The detection limit of sensor 1 to Pb was determined to be 0.5 μM, and the stable pH range for Pb detection was from 4 to 8.
在本研究中，合成了一种高灵敏度和高选择性的荧光化学传感器，即乙基()-2-((2-((2-(7-(二乙氨基)-2-氧代-2-色烯-3-羰基)肼基)甲基)喹啉-8-基)氧基)乙酸酯(1)，并通过核磁共振氢谱、碳谱和电喷雾电离质谱对其进行了表征。传感器1在CHCN/HEPES缓冲介质(9∶1 v/v)中对Pb呈现“开-关”荧光响应，结合化学计量比为1∶1。传感器1对Pb的检测限测定为0.5 μM，检测Pb的稳定pH范围为4至8。
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