Related Experiment Video
Updated: Aug 25, 2026

Characterizing Lewis Pairs Using Titration Coupled with In Situ Infrared Spectroscopy
Published on: February 20, 2020
Qualitative analysis of Cu2+, Co2+, and Ni2+ cations using thin-layer chromatography
1Department of Chemistry, Faculty of Science and Literature, Balikesir University, 10100 Balikesir, Turkey. sergul@balikesir.edu.tr
Abstract:
The M(DEDTC)2 (M = Cu, Co, or Ni) and M(PyDTC)2 (M = Cu or Co) complexes prepared by reactions of sodium diethyldithiocarbamate and ammonium pyrollidinedithiocarbamate with metal (II) nitrates are examined for qualitative analysis and separation using thin-layer chromatography systems. These complexes and their mixtures are spotted to the activated thin layers of silica gel 60GF254 (Si-60GF254) with a 250-microm thickness. Pure toluene and a toluene-cyclohexane mixture (3:1, v/v) are used as mobile phases for running of the complexes. These chromatographic systems are successfully used for qualitative analysis of corresponding metal cations and separation of components in both M(DEDTC)2 and M(PyDTC)2 complex mixtures.
Related Concept Videos
Qualitative Analysis
For instance, group IV...
Qualitative Analysis
There are two main approaches to qualitative analysis:...
Thin-Layer Chromatography (TLC): Overview
To begin the analysis, a mixture of compounds is spotted on the starting line on the TLC plate using a thin capillary. The bottom of the...
Ion-Exchange Chromatography
Precipitation Gravimetry
In determining nickel by gravimetric analysis, a precipitant of ethanolic dimethylglyoxime is added to a hot nickel salt solution. This is quickly followed by the dropwise addition of dilute ammonia solution until precipitation occurs. A...
Extraction: Advanced Methods

