Selective recognition iodide in aqueous solution based on fluorescence enhancement chemosensor.
A novel and simple fluorescence enhancement method for selectively sensing iodide was proposed based on metal complex formation between mercuric(II) ion with fluorophore (p-((dimethylamino)benzylidene)thiosemicarbazide, 1) and with anion in aqueous solution. The 1-Hg complex was found to show selectively and sensitively fluorescence enhancement response toward iodide over than S(2-), EDTA, SCN-, CH(3)CO(2-), Br-, Cl-, F-, H2PO4- and SO4(2-), which was attributed to the higher stability of inorganic complex between iodide and mercuric(II).
Lin
Li-Rong
LR
Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, PR China. linlr@xmu.edu.cn
Fang
Wei
W
Yu
Yun
Y
Huang
Rong-Bin
RB
Zheng
Lan-Sun
LS
D000042:Absorption; D002138:Calibration; D007454:Iodides / Q000737:chemistry*; D008163:Luminescent Measurements / Q000295:instrumentation*; D012996:Solutions; D013050:Spectrometry, Fluorescence
D007454:Iodides; D012996:Solutions