Proc. Intern. Symposium on TLC with special Emphasis on OPLC, Szeged, 43-44 (1984). OPLC (OPTLC) of 4-cyano-phenylesters, triazine derivatives on silica with methanol - water and acetonitrile - water in seven different proportions. Detection with o-toluidine. The RM-values obtained by OPTLC are in good agreement with RM-values in normal chambers.

Anal. Chem. 63, 1524-1529 (1991). Application of a parameter, c, for planar chromatography in either normal - or reverse phase mode to each of a series of week solvents used in a binary mixture with a given strong solvent. Also to a series of strong solvents used with a given week solvent. A linear relation between either the average Rf of solutes or the Rf of individual solutes and the value of c for each of the series of solvents was found for many of the systems studied. Use of the relation to predict the retention of a solute when a mobile phase of known c is used. Discussion of the relation between c and established solvent strength parameters.

J. Planar Chromatogr. 7, 147-152 (1994). Continuation of the paper ref. 73 011, investigating the mobile phases, propanol - hexane, isopropanol - hexane, butanol - hexane.

J. Liq. Chromatogr. & Relat. Technol. 29, 2271-2275 (2006). It is desirable to use the same terms for retention characteristics in CLC and TLC because the nature of chromatographic processes in column liquid chromatography and thin-layer chromatography is practically the same. The publication suggests a new equation for determination relative retention r(ij) using linear values from the TLC chromatogram.

J. Chromatogr. 300, 109-125 (1984). RM definition is proposed for reversed-phase thin-layer chromatographic data. These fragmental values allow a closer examination of Callander-type regressions and open the way for a re-interpretation of the intercept terms of these regressions.

J. Planar Chromatogr. 3, 413-416 (1990). Thermodynamic description of adsorbent - binary solution - solute system in order to characterize a given chromatographic process and investigation of the effect of the chromatographic technique employed, i.e. thin layer or column liquid, on the thermodynamic description of the chromatographic system.

J. Planar Chromatogr. 8, 357 - 361 (1995). Investigation of 17 heterocyclic compounds by adsorption TLC on silica with propanol - hexane mixtures, and by partition TLC on RP-2, RP-8, and RP-18 with methanol - water mixtures. The Rf values measured have been fitted to equations modeling retention in these systems. The retention of the compounds in both adsorption and partition TLC was in good agreement with the models employed.

A study of the mechanism and thermodynamics of retention. J. Liq. Chromatogr. Relat. Technol. 28, 2499-2513 (2005). TLC of R,S-(+/-)-ibuprofen and S-(+)-ibuprofen on silica gel prewashed with methanol - water 9:1 and impregnated with a 0.03 mol/L methanolic solution of L-arginine by dipping. Separation with acetonitrile - methanol - water 5:1:1 and several drops of acetic acid to adjust the pH to 4.8. Two dimensional development with the same mobile phase in the first direction, followed by drying and application of the S-(+)-enantiomer and development in the second direction. Densitometric evaluation at 210 nm. Chiral separation of propanolol with acetonitrile - methanol 15:4 containing ammonia for one and two dimensional separation.