| 黄小倩,陈世君,马晓东,侯士聪.化学通报,2021,84(7):720-725. |
| 新型苯并噻唑类探针的合成及其对S2-的荧光和比色检测 |
| A Novel Probe Based on benzothiazole for Fluorescent and Colorimetric Detection of S2- |
| 投稿时间：2020-12-01 修订日期：2020-12-16 |
| DOI： |
| 中文关键词: ESIPT 苯并噻唑 荧光探针 |
| 英文关键词:ESIPT Benzothiazole Fluorescent probe |
| 基金项目:“十二五”国家科技支撑计划课题(2015BAK45B01)资助 |
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| 中文摘要: |
| 本文设计合成了一种基于ESIPT机理的苯并噻唑类荧光探针TZ-1,并对其结构进行了表征。实验结果表明,在DMSO/PBS(10 mM,1：1(v/v),pH=7.4)溶液中,探针TZ-1具有高选择性并可在3s内实现荧光“off-on”识别S2-,检测限为81 μM,pH适用范围为6～12。在365 nm紫外灯照射下,由无荧光变成橙色荧光。此外,加入S2-后探针TZ-1的DMSO/PBS溶液由无色变为浅黄色,通过裸眼即可识别S2-。 |
| 英文摘要: |
| In this paper, a benzothiazole fluorescent probe TZ-1 based on ESIPT mechanism was designed and synthesized, and its structure was characterized. The results showed that in DMSO/PBS(10 mM, 1:1 (V/V), pH=7.4) solution, probe TZ-1 has high selectivity and can realize fluorescence "off-on" recognition of S2- within 3s, the detection limit is 81 μM, and the pH range is 6~12. Under the irradiation of 365nm UV lamp, the fluorescence changes from no fluorescence to orange fluorescence. In addition, the DMSO/PBS solution of probe TZ-1 changed from colorless to light yellow after adding of S2-, and S2- could be recognized by naked eye. |
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