一种7-羟基四氢喹喔啉-6-甲醛衍生物对H2S的比色和荧光识别  

Colorimetric and Fluorescence Recognition of H2S by A 7-Hydroxytetrahydroquinoxaline-6-carboxaldehyde Derivative

作　　者：钟克利 朱鸿伟 邓隆隆 侯淑华 边延江 汤立军 Zhong Keli;Zhu Hongwei;Deng Longlong;Hou Shuhua;Bian Yanjiang;Tang Lijun(College of Chemistry and Chemical Engineering,Bohai University,Jinzhou 121013)

机构地区：[1]渤海大学化学化工学院

出　　处：《化学通报》2019年第7期618-622,共5页Chemistry

基　　金：辽宁省自然科学基金项目(20170540019);国家自然科学基金项目(21304009,21476029,U1608222);辽宁省博士科研启动基金(20170520416)资助

摘　　要：本文利用1,4-二乙基-7-羟基四氢喹喔啉-6-甲醛与2-甲基苯并噻唑盐反应制备了荧光探针L,并对其结构进行了表征。实验结果表明,探针L在DMSO溶液中对H2S具有快速荧光“关-开”响应以及高选择性和较好的抗干扰能力,检测限为2.5×10^-6mol/L。在365nm紫外灯照射下,L的荧光颜色由无荧光变成黄绿色强荧光;此外,加入H2S后探针L的DMSO溶液颜色由蓝紫色变为无色,通过裸眼即可识别H2S。Probe L was synthesized by using 1,4-diethyl-7-hydroxytetrahydroquinoxaline-6-carboxaldehyde and2-methylbenzothiazole salt as starting materials,and its structure was characterized. The probe L can recognize H2 S with fast fluorescence "off-on"response,high selectivity and good anti-interference ability in DMSO solution. The detection limit of probe L for H2 S was 2. 5 × 10-6 mol/L. The fluorescence color of L changed from non-fluoresce to greenyellow strong fluorescence after adding H2 S by irradiating with a 365 nm UV lamp. Moreover,the color of the solution turned from blueviolet to colorless,thereby suggesting H2 S can be detected by the naked eye.

关 键 词：1 4-二乙基-7-羟基四氢喹喔啉-6-甲醛 荧光探针 H2S 比色 识别 

分 类 号：O657.3[理学—分析化学] TQ125.12[理学—化学]