一种用于在水溶液和蒸汽状态下检测肼的新型香豆素基荧光探针。
A Novel Coumarin-Based Fluorescent Probe for the Detection of Hydrazine Both in Aqueous Solution and Vapor State.
作者信息
Xiao Yu-Hao, Xi Gang, Zhao Xuan-Xuan, Zhou Shuai, Zhou Ze-Quan, Zhao Bao-Xiang
机构信息
Institute of Organic Chemistry, School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, People's Republic of China.
出版信息
J Fluoresc. 2015 Jul;25(4):1023-9. doi: 10.1007/s10895-015-1586-1. Epub 2015 May 28.
A novel coumarin-based fluorescent probe CF was synthesized for the detection of hydrazine both in aqueous solution and vapor state with high sensitivity and selectivity. Upon addition of hydrazine, the solution of probe CF in MeCN-H2O (3/7, v/v, buffered CH3COOH/CH3COONa) at pH 5.0 exhibited a remarkable change in emission color from pale green to light blue, which could be recognized with naked eyes. Applied in weak acid condition, probe CF could detect hydrazine selectively with large amount of unknown environments according to the competing tests. Besides, with the limit of detection 8.32 ppb (2.6 × 10(-7) M), probe CF could well meet the request (10 ppb) of the U.S. Environmental Protection Agency (EPA).
合成了一种新型的基于香豆素的荧光探针CF，用于在水溶液和蒸汽状态下高灵敏度和高选择性地检测肼。加入肼后，探针CF在pH为5.0的MeCN-H2O（3/7，v/v，缓冲的CH3COOH/CH3COONa）溶液中的发射颜色从浅绿色显著变为浅蓝色，肉眼即可识别。在弱酸条件下应用时，根据竞争试验，探针CF可以在大量未知环境中选择性地检测肼。此外，探针CF的检测限为8.32 ppb（2.6×10(-7) M），能够很好地满足美国环境保护局（EPA）的要求（10 ppb）。
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