| 一种基于萘异硫氰酸酯的Hg2+反应型荧光探针 |
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| 引用本文： | 陈嘉韵,周洪齐,罗茜煜,何颂华,马立军. 一种基于萘异硫氰酸酯的Hg2+反应型荧光探针[J]. 华南师范大学学报(自然科学版), 2018, 50(6): 20-24. DOI: 10.6054/j.jscnun.2018112 |
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| 作者姓名： | 陈嘉韵 周洪齐 罗茜煜 何颂华 马立军 |
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| 作者单位： | 1.1.华南师范大学化学与环境学院,广州510006; |
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| 基金项目： | 新型重金属离子荧光探针的开发及识别性能研究;荧光高分子材料用于识别、检测以及富集重金属的应用性研究 |
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| 摘 要： | 以萘异硫氰酸酯为反应基团和荧光基团，设计、合成了一种能够识别Hg2+的荧光探针（HBN），利用质谱、核磁共振方法表征了其结构，并利用紫外-可见吸收光谱、荧光发射光谱，对HBN识别Hg2+的性能进行了测试及分析.研究发现，HBN在50%乙腈水溶液中对Hg2+表现出非常高的选择性和灵敏度，其荧光强度随Hg2+浓度的增强而不断增强，当Hg2+浓度为探针浓度2倍时荧光强度不再上升，同时质谱检测到新物质的生成，显示了该探针属于Hg2+反应型荧光探针。
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| 关 键 词： | 反应型荧光探针，荧光增强 |
| 收稿时间： | 2018-05-07 |
A Reactive Fluorescence Probe based on Naphthalene Isothiocyanate For Hg2+ |
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| Affiliation: | 1.1. School of Chemistry and Environment,South China Normal University,Guangzhou 510006,China;2.2. School of Materials Science and Engineering,South China Normal University of Technology,Guangzhou 510640,China |
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| Abstract: | A fluorescent probe (HBN) capable of recognizing Hg2+ was designed and synthesized using naphthalene isothiocyanate as a recognition and fluorescent group. The structure was characterized by Mass Spectrometry and Nuclear Magnetic Resonance, and Ultraviolet-Visible Absorption Spectrum and fluorescence emission were used, which show various properties of HBN to identify Hg2+. The results reveal that HBN exhibits higher selectivity and fluorescence response to Hg2+ in 50% acetonitrile aqueous solution, and its fluorescence intensity increases with the increase of Hg2+ concentration, which stops when the concentration of Hg2+ is two times the concentration of the probe. In the same time, the new compound was detected by mass spectrometry, indicating that HBN belonged to reactive fluorescent probe of Hg2+. |
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