Azo dyes featuring a pyrene unit: New selective chromogenic and fluorogenic chemodosimeters for Hg(II)

作者：Cheng Chang Chiang; Chen Zhong Shin; Wu Chen Yu; Lin Chiung Cheng; Yang Chi Rei; Yen Yao Pin^*

来源：Sensors and Actuators B: Chemical , 2009, 142(1): 280-287.

DOI：10.1016/j.snb.2009.07.020

• Chromogenic sensor
• Fluorogenic sensor
• Chemodosimeters
• Mercury ion
• Azo dyes
• Pyrene

Three new chemodosimeters 1-3 were prepared, and their chromogenic and fluorogenic behaviors toward various metal cations were investigated. Receptors 1-3 show exclusive response toward Hg(2+) ion and also distinguish Hg(2+) from other metal cations by different color changes in DMSO aqueous solution (DMSO/H(2)O = 9/1). Among them, receptor 1 also exhibits a pronounced Hg(2+)-induced fluorescence enhancement. Thus, the receptor 1 can be used as a colorimetric and fluorescent chemodosimeter for the determination of Hg(2+) ion. The use of the test strip of the receptor 1 to detect Hg(2+) was also reported.

• 出版日期2009-10-12