J. Liquid Chrom. 9, 3447-3459 (1986). Description of two basic theories for adsorption TLC optimization: thermodynamic adsorption theory and theory based on mass action law (so called Snyder's theory). Application on chromatographic systems using chitin as stationary phase for separation of amino acids. Results were comparable for systems with silica gel as stationary phase

J. Planar Chromatogr. 5, 452-457 (1992). Investigation of a new model of solute retention in chromatographic systems with multicomponent mobile phases (T. Kowalska, Fat. Sci. Technol. 90 (1988) 259-263) by adsorption TLC on silica with 2-propanol - hexane in different ratios. The practical suitability of the approach has been demonstrated.

J. Planar Chromatogr. 13, 48-51 (2000). Use of the thermoanalytical methods TG, DTG, and DTA for the study of chemically modified stationary phases (amino-, mercapto-, n-octyl-, n-octadecyl-organosilicon modifications). Thermal analysis gives quantitative information about the water and organic content of the phases studied. TG, DTG, and DTA can be regarded as useful techniques for supplementary study of the chemically modified stationary phases used in TLC.

An in vivo study. Polish Journal of Pharmacology and Pharmacy 39, 379-386 (1987). TLC of imipramine, desipramine and their 2-hydroxy homologues on silica with chloroform - isopropanol 10:1, intermediate drying and isopropanol - chloroform - water - 25 % NH3 50:30:20:2; localizing spots under 254 nm UV after spraying with water; quantification by spectrophotometry after elution. Determination limit 0.5 µg/sample.

J. Planar Chromatogr. 5, 441-445 (1992). Extension of the applicability of a new retention model published before (T. Kowalska, J. Planar Chromatogr. 2, 44-48 (1989)) to reverse phase chromatography with THF - water and acetone - water eluents. For the solutes considered, good agreement was found between experimental retention parameters (Rf) and those predicted by the derived models. The results of the computations performed enabled conclusions to be drawn concerning the mechanism of retention of test solutes (PAHs) in the chromatographic systems investigated.

J. Planar Chromatogr. 13, 254-256 (2000). Study of the physicochemical fundamentals of planar analytical test methods with analytical reagents forming poorly soluble products on reaction with the target compound. In the test methods the analytical reagent was applied to a porous planar system (paper, or an adsorbent layer spread on a support). It was shown that regularities in the planar test methods are similar to those observed in planar chromatography.

Acta Chromatographica 21(1), (2009). Introduction of a new objective chromatographic response function RK, based on the kernel density estimation, for evaluation of the fingerprinting performance of a particular TLC system (uniformity of retention) for which a large set of experimental hRf values of possible components of the mixture is available. The RK criterion is insensitive to large numbers (hundreds or thousands) of hRf values, can be applied to one and two-dimensional TLC and is easily computed.

J. Planar Chromatogr. 2, 161-162, (1989). Optimization of a ternary mobile phase utilizing generalized equation. Two less polar solvents were mixed 1:1 and a third, more polar solvent added to the mixture to produce mole fractions between 0.1 and 0.9. Chromatographic parameters evaluated via Rm values. For the separation of 1,4- and 1,5-isomers of naphthalene compounds on silica, carbon tetrachloride - chloroform 1:1 with the addition of 0.5 - 0.7 mole fractions of methanol or acetone were found most suitable.