IV. Effect of sorbent on the behavior of mixed aminocarboxylato cobalt (III) complexes. Chromatographia 38, 447-452 (1994). Investigation of the effect of the sorbent on RM values, salting-out efficiency (m) and separation factors (a) of adjacent members of homologous series in salting-out TLC on silica, polyacrylonitrile and cellulose sorbents, using ammonium sulfate solutions as developers. Study of literature data for 14 mixed aminocarboxylato cobalt (III) complexes.

J. Chromatogr. A 725, 199-202 (1996). TLC of heavy metals and their complexes with dithizone, 4-(2-pyridylazo)resorcinol and ethylenediaminetetraacetic acid on cellulose, Florisil, Polygram Ionex-25 SA-Na or Polygram Ionex-25 SB-Ac with various solvent systems. Elaboration of the conditions for SPE of the metal ions in the title matrix after microwave mineralization, and in air after alkaline absorption.

J. Planar Chromatogr. 13, 151-153 (2000). TLC separation of Cr, Mn, Fe, Co, Ni, Cu, Zn, Ag, Cd, Pb on cellulose with methanol - benzene - ethyl methyl ketone - 1-butanol - 25% NH3 6:4:4:3:3, methanol - benzene - ethyl acetate - ethyl methyl ketone - 25% NH3 5:4:5:3:3, and methanol - benzene - ethyl methyl ketone - 1-butanol - 2 M HCl 6:4:4:3:3. Detection after drying by spraying with a new visualization reagent, a 0.01% solution of 9-formylacridine in dichloromethane. The plates were then heated at 120°C for 10 min and examined under UV 366 nm.

J. Planar Chromatogr. 16, 286-288 (2003). TLC of zinc(II) butyrate, zinc(II) isobutyrate, and zinc acetate on silica gel, prewashed with water û methanol, with 2-propanol - water 2:3 and pure redistilled water and on anion exchange layers with dioxane - water 3:2. Detection by derivatization with bromophenol blue, bromocresol green, and thymol blue indicator solutions, directly on the wet layer. Bromocresol green (0.5% solution + 5 mL 0.1 M NaOH) resulted in most sensitive detection of the carboxylates tested. The detection limit for this reagent and butyrate anion was established as 0.03 mg/L. New detection procedure.

Separation of inorganic ions on layered double hydroxides. J. Planar Chromatogr. 12, 378-382 (1999). TLC of 26 inorganic cations and 17 anions on layers prepared from layered double hydroxides (LDH; prepared from magnesium and aluminium nitrate) and silica gel with different mobile phases and a wide variety of detection reagents. - A new parameter SRF has been introduced to quantify the separating power of the sorbent.

J. Liquid Chromatogr. 6, 1253-1264 (1983). Study of absorption behaviour of 47 metal ions in aq. HCl systems using stannic arsenate layers. The effect of solvent pH on Rf along with the complexation effect of HCl has been investigated. On the basis of Rf values the Ksp of some metal arsenates have been predicted. HCl has been utilized to resolve some binary and ternary mixtures.

J. Planar Chromatogr. 11, 457-459 (1998). Description of a preconcentration method based on continuous elution and intense thermal desorption of the main volatile component in a narrow zone on the plate. A fiftyfold concentration of a model dye mixture from an aqueous solution was achieved on a TLC plate in 20 - 30 min. Silica gel, propan-2-ol as mobile phase and quantitation by densitometry at 530 nm. The technique enables determination of the amounts of common metals in drinking water.