J. Planar Chromatogr. 7, 305-308 (1994). Calculation of specific heats and adsorption energies for different TLC systems comprising fifteen different ternary solvents containing ethyl acetate, chloroform, tetrahydrofuran and hexane. The heat capacities of the systems were quite logically affected by the solvents. They increased as volumes of ethyl acetate and tetrahydrofuran were increased. The highest adsorption energy was found for the system comprising silica gel with pure tetrahydrofuran as eluent.

Anal. Bioanal. Chem. 391, 2111-2118 (2008). Review of developments in planar electrochromatography in open (PEC) and closed (PPEC) systems regarding the progress in chamber construction for planar electrochromatography, separating system performance, equilibration of the PPEC process, separation time and selectivity, and the general advantages, disadvantages and prospects of this separation mode. PPEC of 4-cholesten-3-one, 4-androsten-17alpha-ol-3-one acetate, 17R-acetoxyprogesterone, androstenedione, 4-pregen-11R-ol-3,20-dione, benzanilide, o-nitroaniline, hydrocortisone alcohol, and benzamide on RP-18 with 55 % aqueous acetonitrile containing 5 mM acetate buffer (pH 4.7) at 9 kV and under a pressure of 63 atm.

Comparison of the extrapolated Rm values. J. Chromatogr. 347, 209-218 (1985). Rm determination of a series of prostaglandins in two reversed-phase TLC systems, the mobile phase being an aqueous buffer alone or mixed-with various amounts of methanol or acetone. Discussion of the relationship between chromatographic behaviour and mobile phase composition. The extrapolated Rm values are independent of the nature of the organic solvent

Chromatographia 23, 207-208 (1967). TLC of 15 amino acids on silica, or on silica impregnated with halide ions, with n-butanol - acetic acid - chloroform 3:1:1. Detection by spraying with 0.2 % ninhydrin in acetone. Discussion of the effect of .the hydrophobic interactions between silica gel and amino acid molecules, of polarity and of the flow of the mobile phase on resolution. The method provided resolution of 10-11 amino acids from a 15 component mixture.

J. Planar Chromatogr. 1, 141-145 (1988). Investigation of the influence of the linear velocity of eluent on HETP value in OPLC and the differences of the HETP in its off-line and on-line modes. Discussion of other parameters such as solvent demixing, relationship between RM values of ß fronts, and the correlation between off-line and on-line OPLC regarding retention.

J. Planar Chromatogr. 2, 165-168 (1989). Practice of planar chromatography. Equations are given for resolution, plate height, separation number and best number of developments producing maximum separation.

J. Chromatogr. 550, 645-656 (1991). Discussion of a model chromatographic process which takes into account molecular association in the mobile phase. Application of the model to the study of the association effects in liquid adsorption chromatography with ternary mobile phases. Use of Jaroniec’s equation in description of molecular interactions

(Finnish). Kemia-Kemi 24, 224-228 (1997). Advantages of HPTLC, AMD, OPLC and a special spectrum library are described. According to the authors important fields that utilize TLC are pharmaceutical analysis, toxicology and pharmacognosy.