Title of article :
Use of squarylium dyes as a sensing molecule in optical sensors for the detection of metal ions
Author/Authors :
Park، Sang Hyun نويسنده , , Kim، Sung Hoon نويسنده , , Han، Sun Kyung نويسنده , , Lee، Sang Min نويسنده , , Lee، Su Mi نويسنده , , Koh، Kwang Nak نويسنده , , Kang، Shin Won 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 :
Azodyes , aggregation , Solvent effect , Kinetics , UV-visible spectroscopy , Tautomerism
Journal title :
DYES & PIGMENTS
Journal title :
DYES & PIGMENTS
