SPECTROSCOPY LETTERS, vol.31, no.1, pp.87-98, 1998 (SCI-Expanded)
The well known methods of Job's continuous variations and mole-ratio were used for the determination of the compositions of some metal-N,N-diethyl-N'-benzoyl-thiourea complexes chromatographically using HPTLC-densitometry. A different and a simple application of these two methods makes the determination of the composition of metal-ligand complexes possible even when the maximum absorption wavelengths of ligand and complexes are close to each other.