Qualitative analysis of Cu2+, Co2+, and Ni2+ cations using thin-layer chromatography.
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.
Molecular basis of chromatographic separation
Adsorption Phenomena and Molecular Interactions in Chromatography Adsorption Phenomena in Gas-Liquid Chromatography Adsorption Phenomena in Liquid Chromatography Competitive Adsorption of the Eluent Components Competitive Adsorption of Analytes Molecular Forces in Chromatography Gas Chromatography Fundamentals Models of GLC Retention and Separation Influence of Adsorption Side Effects on Retention Behavior Descriptors of GLC Retention and Their Correlation with Molecular Parameters Retention Time Capacity Factor The Kovats Index The Takacs Retention Index Other Descriptors Application of Solute Parameters Retention Relationships Liquid Chromatography Thin-Layer Chromatography Principles of Adsorption and Reversed-Phase Thin-Layer Chromatography Molecular Basis of Separation in Adsorption Thin-Layer Chromatography Molecular Basis of Separation in Reversed-Phase Thin-Layer Chromatography High-Performance Liquid Chromatography Fundamentals Direct (Normal) Phase High-Performance Liquid Chromatography Reversed-Phase Chromatography Graphitized Carbon Packing Materials Other Metal-Oxide Support New Reversed-Phase Columns Appendix References Index
Anorganische Dünnschicht‐Chromatographie. 1. Mitteilung
The thin layer (chromatoplate) method is applied to the separation and identification of mixtures of inorganic cations.