392305-84-9Relevant academic research and scientific papers
A highly selective colorimetric sensor for Cu2+ based on phenolic group biscarbonyl hydrazone
Li, Junjian,Guo, Ying,Yao, Hong,Lin, Qi,Xie, Yongqiang,Wei, Taibao,Zhang, Youming
, p. 271 - 276 (2013)
A novel copper selective sensor 2 based on hydrazide and salicylaldehyde has been designed and prepared. Sensor 2 behaves a single selectivity and sensitivity in the recognition for Cu2+ over other metal ions such as Fe3+, Hg2+, Ag+, Ca2+, Zn 2+, Pb2+, Cd2+, Ni2+, Co 2+, Cr3+ and Mg2+in DMSO. The distinct color change and the rapid changement of fluorescence emission provide naked-eyes detection for Cu2+. The UV-vis data indicate that 1:2 stoichiometry complex is formed by sensor 2 and Cu2+. The association constant Ks was 3.51×104 mol-1·L. The detection limitation of Cu2+with the sensor 2 was 2.2×10 -7 mol·L-1. The sensing of Cu2+ by this sensor was found to be reversible, with the Cu2+-induced color being lost upon addition of EDTA. Copyright
