Tang Tengxuan, Guo Wenbo, Zhang Yuping, Xu Dongmei
College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, Jiangsu, China.
J Fluoresc. 2019 Mar;29(2):445-450. doi: 10.1007/s10895-019-02354-8. Epub 2019 Feb 1.
A new fluorescent sensor was designed and synthesized from 5-nitro-1,2-dihydroacenaphthylene, n-butyl amine and 1-(2-pyridyl)piperazine. In DMF/HO (3:1, v/v), the sensor showed excellent selectivity and sensitivity to Fe with fast fluorescence enhancement and good anti-interference ability. The maximal fluorescence intensity was linearly proportional to the Fe concentration (60-140 μM). The detection limit was 81 nM. The sensor could work in a pH span of 5.0-8.0. A 1:1 complex was formed reversibly between the sensor and Fe.
一种新型荧光传感器由5-硝基-1,2-二氢苊、正丁胺和1-(2-吡啶基)哌嗪设计合成。在N,N-二甲基甲酰胺/水（3:1，体积比）中，该传感器对铁离子表现出优异的选择性和灵敏度，荧光增强迅速且抗干扰能力良好。最大荧光强度与铁离子浓度（60 - 140 μM）呈线性比例关系。检测限为81 nM。该传感器可在pH值5.0 - 8.0范围内工作。传感器与铁离子可逆地形成1:1配合物。
