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.