A Selective and Sensitive Fluorescence Probe for Se(IV) Based on Fluorescence Quenching of Gatifloxacin

作者：Liu Qing; Huan Yanfu; Zheng Qingchuan; Fei Qiang; Fei Yanqun; Fan Qian; Feng Guodong; Shan Hongyan^*

来源：Chemical Research in Chinese Universities, 2016, 32(5): 736-741.

DOI：10.1007/s40242-016-6015-8

• Gatifloxacin
• Fluorescence probe
• Quenching
• Selenium

A novel high selective and sensitive fluorescence probe termed gatifloxacin was discovered based on fluorescence "on -off' phenomenon in the presence of Se(IV). In the Tris-HCl/acetonitrile(3:7, volume ratio, Tris-HCl 0.05 mol/L, pH=7.3) system, the fluorescence intensity of gatifloxacin was linearly decreased with the concentration increase of Se(IV) in a range of 1.0x10(-5)-5.0 x 10(-5) mol/L with a correlation coefficient of 0.9979(R-2=0.9958) and in a range of 5.0 X 10(-5)-1.0 X 10(-4) mol/L with a correlation coefficient of 0.9973(R-2=0.9946). The detection limit of Se(IV) was 1.70x 10(-6) mol/L.

• 出版日期2016-10
• 单位吉林大学