Rosamine-Based Fluorescent Sensor with Femtomolar Affinity for the Reversible Detection of a Mercury Ion

2012 ◽  
Vol 51 (24) ◽  
pp. 13075-13077 ◽  
Author(s):  
Masayasu Taki ◽  
Kazushi Akaoka ◽  
Shohei Iyoshi ◽  
Yukio Yamamoto
Keyword(s):  
Fluorescent Sensor ◽  
Mercury Ion

A highly selective fluorescent sensor for mercury ion (II) based on azathia-crown ether possessing a dansyl moiety

Luminescence ◽  
2010 ◽  
Vol 26 (6) ◽  
pp. 523-530 ◽  
Author(s):  
Huajun Dai ◽  
Fei Liu ◽  
Qianqian Gao ◽  
Tianhua Fu ◽  
Xingming Kou
Keyword(s):  
Crown Ether ◽  
Fluorescent Sensor ◽  
Mercury Ion

A New Schiff’s Base Fluorescent Sensor for the Selective Detection of Mercury Ion

2011 ◽  
Vol 239-242 ◽  
pp. 1105-1108 ◽  
Author(s):  
Xue Mei Wang ◽  
Hua Yan ◽  
Yong Chen ◽  
He Bin Bao
Keyword(s):  
Fluorescent Sensor ◽  
Fluorescence Emission ◽  
Emission Spectra ◽  
Mercury Ion ◽  
Fluorescence Measurement ◽  
Fluorescence Emission Spectra ◽  
H Nmr ◽  
Complex Process ◽  
Characteristic Wavelength ◽  
Ft Ir

A new Hg2+-sensing and selective fluorescent sensor, 1-(1-pyrenecarboxaldehyd e)-thiocarbohydrazone, was synthesized and characterized by elemental analysis, FT-IR and 1H NMR spectra. Its fluorescence and recognition properties to the mercury ion were studied by the fluorescence emission spectra. With adding mercury ion into solution, the fluorescence emission intensities at different characteristic wavelength changed continually. Hence the ratiometric fluorescence measurement was used for detecting the complex process. It was found that a 1:1 stoichiometry complex is formed between the mercury ion and the compound with the association constants were 2.04×105 L/mol, respectively. And the detection limits of the mercury ion were 2.52×10-8 mol/L.

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