J. Planar Chromatogr. 4, 406-409 (1991). Study of the kinetics of the basic hydrolysis of a derivative of a tetrahydropyrimidinium salt with post-elution UV spectrophotometry. TLC and HPTLC of 1-(4-chlorophenyl)-3-methyl-2-phenyl-1,4,5,6-tetrahydropyrimidinium iodide on silica with chloroform - methanol 8:2 and 9:1 and benzene - chloroform - methanol 1:1:1. Visualization under UV 254 and 366 nm.

J. Planar Chromatogr. 14, 160-174 (2001). Use of the solvation parameter model for the characterization of the retention properties of a varied group of solutes in silica gel thin-layer chromatography (TLC) and in silica gel and aluminium oxide column liquid chromatography. The model was unable to describe retention on silica gel TLC plates with the RM value as the dependent variable for five single-solvent mobile phases. The results were, however, improved fitting the retention data to the simple competition model and separating the solute and solvent contributions to the free energy of adsorption on the inorganic oxide.

Anal. Chem. 56, 1258A-1270A (1984). Discussion of the possibilities of 2D separations based on known 1D techniques. Emphasis on a judicious choice of building blocks, the development of effective means for their combination, system optimization and the development of sophisticated detection and data reduction system.

Influence of ion-pair structure and solvent pH on Rf. J. Chromatogr. 360, 236-240 (1986). TLC of organic acids on silica, dipped in 0.1 M ion-pair reagents, with methanol - water -1:1. Investigation of the effects of solvent pH and the structure of the ion-pair reagent on Rf.

J. Planar Chromatogr. 1, 150-160 (1988). Discussion of the potential and the limitation of column liquid chromatography, planar chromatography (TLC) and GC with emphasis on the separation efficiency, sample pretreatment, detection, derivatization procedures, speed of analysis, possibility of on-line coupling and some future trends.

J. Planar Chromatogr. 1, 373-376 (1988). A lecture with 12 references.

Chromatographia 31, 152-156 (1991). Determination of the retention of 9 nonylphenyl ethylene oxide oligomers in 15 reverse-phase chromatographic systems using silicone oils of various molecular mass impregnating agents and silica, cellulose and alumina supports. Evaluation of the data with principal component analysis carried out on the covariance and the correlation matrices. Discussion of the effect of nature of support and impregnating agent on lipophilicity.

(A comparison between the Hungaria European Pharmacopoeia). Gyógyszerészet 39, 5-6 (1995). Author point out the special significance of TLC in the pharmacopoeal analytics. The presented data prove that the three main chromatographic techniques are prevailingly used in the European as well as in the Hungarian pharmacopoeias (i.e. in 29% of the paragraphs of the Ph.Hg.VII and in 63% of that of the method: about 90% in both pharmacopoeias. Thus, the frequency of application of the three chromatographic methods in that special analytical field is in succession the following: TLC>>GC>HPLC opposite to the common practice adopted in analytic and drug analytic.