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.

Chromatographia 67 (3-4), 259-267 (2008). Investigation of saturated aqueous solutions of 28 different salts used as potential mobile phases for salting-out TLC, on silica gel, of a series of four mixed bis-aminocarboxylato cobalt(III) complexes. Confirmation of three alkali metal chlorides, and four alkaline earth metal chlorides, for linear dependences previously established on different adsorbents with (NH4)2SO4 solutions by linear regression analysis of chromatographic data obtained for fifteen mixed aminocarboxylato Co(III) complexes (four series) with solutions of ammonium chloride. Comparison of separation achieved with different salts. Li+, Mg2+, and Ca2+ chlorides are most suitable.

Anal. Chem. (Fenxi Huaxue) 12, 1077-1078 (1984). (Chinese). (Separation of rare earth elements by thin-layer chromatography. ) TLC of rare earth elements, La, Ce, Pr, Nd, SM, Eu, Tb and Ho on silica with monotetradecyl phosphate (p538)- ethyl acetate - nitric acid in varying proportions. The Rf values of the elements involved increase with their atomic system number.

Viewing under UV. Densitometry by absorbance at 310 nm. Detection 0.1 to 1 ng.

Chromatographia 21, 708-710 (1986). Investigation of the TLC behaviour of 49 inorganic ions on polyethyleneimine cellulose with hydrochloric acid media. The sorption on the cellulose decreases with increasing acid concentration for most of the ions, but As(III), Ti(IV) and Te(VI) do not exhibit Rf variation with acid concentration.

II. Study of n-propyl alcohol systems). (Chinese). J.Wuhan Univ. 1, 79-84 (1987) (Wuhan Daxue Xuebao). Investigation of the TLC behaviors of some metal ions on silica using 4 developing solvent systems containing n-propanol. The optimal systems for different ion combinations were given.

Fres. J. Anal. Chem. 336, 419-422 (1990). TLC of all lanthanoids except Pm in aqueous solutions of five alkali metal chlorides on silica. Visualization by spraying with 0.02% aqueous arsenazo(III) solution and 1 mol/L acetic acid. Examination of the effects of the solvent cations and the solvent anions on the Rf values. Discussion of effects of the salt concentrations on Rf values. For the separation of groups of adjacent lanthanoids typical chromatograms are presented.

Microchem. J. 39, 361-371 (1989). TLC separation of Hg(II) on silica impregnated with 2% oxalic acid with ethyl acetate - acetone - formic acid - water 8:7:4:1. Detection with standard reagents, derivatization.