| 钟克利,朱鸿伟,邓隆隆,侯淑华,边延江,汤立军.化学通报,2019,82(7):618-622. |
| 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 |
| 投稿时间：2019-01-19 修订日期：2019-03-02 |
| DOI： |
| 中文关键词: 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 |
| 英文关键词:1,4-diethyl-7-hydroxytetra hydroquinoxaline-6-carboxaldehyde fluorescent probe H2S colorimetric recognition |
| 基金项目:辽宁省自然科学基金(20170540019)、国家自然科学基金(21304009, 21476029, U1608222)、辽宁省博士科研启动基金(20170520416) 资助 |
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| 中文摘要: |
| 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2.5×10-6 mol/L。在365 nm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。 |
| 英文摘要: |
| Probe L was synthesized by using 1,4-diethyl-7-hydroxytetrahydroquinoxaline-6-carboxaldehyde and 2-methylbenzothiazole salt as starting materials, and its structure was characterized. The results show that probe L can recognize for H2S with fast fluorescence "off-on" response, high selectivity and good anti-interference ability in DMSO solution. The detection limit of probe L was 2.05×10-6 mol/L. The fluorescence color of L changed from non-fluoresce to greenyellow strong fluorescence after adding H2S by irradiating with a 365 nm UV lamp. Moreover, the solution turned from blueviolet to colorless, thereby suggesting H2S can be detected by the naked eye |
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