Published:Journal of Chromatographic Science,
ISSN 0021-9665 Volume
44, Number 9, October 2006, pp.543-547
Investigation
of Thin-Layer Chromatography Properties of Some Transition Metal
Complexes Based on Ditiocarbamates
Soner Ergül
Department of Science Education, Faculty of Education, Ondokuz May¦s University
Samsun, 55200, Turkey
Sodium diethyldithiocarbamate (DEDTC) and
ammonium pyrolidinedithiocarbamate (PyDTC) are prepared as
their Co or Cu (M) complexes [M(DEDTC)2 and M(PyDTC)2, respectively].
The complexes are prepared by reactions of DEDTC and PyDTC
with metal (II) nitrates, and they are examined for chromatographic
properties using thin-layer chromatography systems. These complexes
and their mixtures are spotted on the activated and non-activated
250-µm thick thin layers of commercial silica gel (Si-60GF254).
Pure toluene and a toluene–cyclohexane mixture (3:1,
v/v) are used as mobile phases for running the complexes. These
chromatographic systems are successfully used for the qualitative
analysis of the corresponding metal cations and the separation
of components in both M(DEDTC)2 and M(PyDTC)2 complex mixtures.
In addition, non-activated layers are more successful than
activated layers. This study may be useful in understanding
the effects of stationary and mobile phase properties, retention
mechanisms, and the effects of the nature of metal and ligand
type on the chromatographic behavior and parameters [e.g.,
retention factors, theoretical plate numbers, and resolution]
of the complexes.
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