A visible colorimetric pH sensitive chemosensor based on azo dye of benzophenone
作者:Yunming Wang、Bingtao Tang、Shufen Zhang
DOI:10.1016/j.dyepig.2011.03.003
日期:2011.12
sensitive chemosensor (Dye A) based on a benzophenone azodye was designed and synthesized. This chemosensor had a large wavelength shift (>170 nm) and showed excellent sensitivity in the range of pH from 7.9 to 9.3. In addition, the possible mechanism of the chemosensor with remarkable change of visible color was established by the 1H-NMR- and 13C-NMR-titration experiments. This pH chemosensor has a fast