Title of article :
Structure and solvent effect on the photostability of indolenine cyanine dyes
Author/Authors :
Chen، Ping نويسنده , , Hu، Yunfeng نويسنده , , Sun، Shuqing نويسنده , , Qian، Zhiguo نويسنده , , Zheng، Deshui نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 1999
Abstract :
The complex formation of squarylium (SQ) and dithiosquarylium (DTSQ) dyes with Cu2+ and Ag+ was investigated spectrophotometrically. Their absorption spectra showed cation selective spectral intensity changes in the presence of specific metal ions in CH2Cl2¯CH3CN due to cation complexing. Highly selective ion sensing film optodes for the determination of two kinds of ions, Cu2+and Ag+, were prepared with plasticized PVC¯PVAc¯PVA membranes containing the SQ or DTSQ dye.
Keywords :
Solvent effect , Photostability , photooxidation , Cyanine dyes , Structure effect
Journal title :
DYES & PIGMENTS
Journal title :
DYES & PIGMENTS
