J. Planar Chromatogr. 34, 369-375 (2021). Review of the application of TLC and HPTLC for the analysis of inorganic anions between 1995 and 2020, including separation techniques in multicomponent mixtures.

J. Planar Chromatogr. 33, 89-95 (2020). Thin-layer electrophoresis of inorganic anions F-, Cl-, Br-, I-, IO3-, IO4-, BrO3-, IO3-, Fe(CN)63- and Fe(CN)64- on (1) silica gel, (2) titanium (IV) tungstate and (3) admixture of silica gel and titanium (IV) tungstate 1:1 for 2 h at 100 V using 0.1 M oxalic acid, 0.1 M citric acid, 0.1 M tartaric acid, 0.1 M succinic acid and 0.1 M acetic acid as background electrolyte. Silica gel was effective in achieving binary, ternary and quaternary separations. The magnitude of migration was in accord with the order of lyotropic number.

J. Planar Chromatogr. 32, 265-271 (2019). HPTLC of 24 anions on tri-n-butyl amine (TBA) impregnated silica gel with 13 mobile phases (methanol, dimethylformamide, diisopropyl ether, tetrahydrofuran, 2-propanol, dimethylformamide - methanol 1:1, dimethylformamide - diisopropyl ether 1:1, dimethylformamide - tetrahydrofuran, 1:1, dimethylformamide - 2-propanol 1:1, 0.1 M oxalic acid, 0.1 M tartaric acid, 0.1 M citric acid and 0.1 M succinic acid). The retention behavior was analyzed in aqueous and non-aqueous mobile phases. The hRF values were also correlated with their lyotropic numbers. 20 % TBA-impregnated silica gel was found very effective for binary and ternary separations of anions.
 

J. Planar Chromatogr. 32, 157-163 (2019). HPTLC of lead in the presence of other metal ions and synthetic alloys on 20 % tri-n-butyl phosphate (TBP) or tri-n-butylamine (TBA)-impregnated silica gel with butanol - 8 M nitric acid in varying ratios. Quantitative determination by spectrophotometry of the scratched zone detected with the dithiozone reagent.

J. Liquid Chromatogr. 8, 571-574 (1985). Separation of thirteen metal ions on silica impregnated with 2,2'-dipyridyl and iminodiacetic acid using the solvent systems: isoamyl alcohol - water - acetic acid 2:1:1 and methanol - benzene - acetic acid 20:10:15. Detection by spraying first with 1 % ethanolic alizarin solution and then with dithizone (0.5 %) in CCl4.

Chromatographia 38, 355-358 (1994). Discussion of a linear relation between RM and mol % ammonium sulfate in an aqueous solvent system. established for mixed aminocarboxylato cobalt (III) complexes in salting-out TLC on silica, polyacrylonitrile and cellulose. Verification by linear regression analysis of the corresponding data compound separated on cellulose, and for 7 inorganic anions.

J. Chromatogr. Sci. 46 (10), 907-911 (2008). Examination of M(DEDTC)2 (M = Cu, Co, or Ni) and M(PyDTC)2 (M = Cu or Co) complexes prepared by reactions of sodium diethyldithiocarbamate (NaDEDTC) and ammonium pyrrolidinedithiocarbamate (NH4PyDTC) with metal (II) nitrates. Qualitative analysis and separation using TLC systems in the literature. Reexamination and discussion of the already known separation behaviour of the mentioned metal cations and their complexes in the context of relation to the crystal field theory (CFT) and TLC. Based on the chromatographic data it was found that CFT is closely related to the TLC separation of these metal cations and their complexes. This study is useful in understanding the linkage between the CFT of coordination chemistry and the chromatographic parameters, e.g., hRf value and theoretical plate numbers of the complexes.

J. Liquid Chromatogr. 8, 1279-1292 (1985). Separation of metal ions on silica impregnated with sec-butylamine or tert-butylamine using formic acid or sodium formate systems as eluent. Detection with conventional spot test reagents.