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.

J. Chromatogr. A 1053 (1-2), 15-26 (2004). The mini-review summarizes the develoment of different classes of novel quaternarized heterocyclic compounds able to modulate and reverse the electroendoosmotic flow (EOF) in a most peculiar manner. The first class comprises mono-salt compounds, with the determinant omega-iodoalkyl chains of different lengths (typically C4-C8), able to be adsorbed by silicas at alkaline pH and spontaneously alkylate ionised silanols, thus becoming covalently affixed to it. The second class is constituted by di-salt compounds, attached at the termini of an alkyl chain of variable lengths (typically C4-C8). This second class is unable to bind covalently silica surfaces although in thin-layer chromatography it exhibits an extraordinary affinity for silica beads, contrary to the first one. On the basis of the strikingly different behaviour structural rules are derived for the minimum requirements for general classes of amines to bind to silica walls and modify EOF. For compounds unable to bind covalently to the wall, the most important structural motif is two quaternary nitrogens spaced apart by a C4 chain: this seems to be the average distance (i.e. 0.8 nm) between two adjacent, ionized silanols for a snug fit. The other structural binding motif is the "hydrophobic decoration", i.e. the ratio of charged groups to alkyl residue in the various amines; amines with high levels of such alkane groups (i.e. with higher hydrophobicity), seem to bind more tenaciously to the wall, probably due to hydrophobic interaction not to the wall but among the amine derivatives themselves when carpeting the silica.

LC-GC Europe Applications 16, 2-9 (2003). Overview of various multidimensional planar chromatography (MD-PC) techniques: Comprehensive two-dimensional PC (PC x PC), targeted or selective two-dimensional PC (PC x PC), modulated two-dimensional PC (nPC), coupled-layer PC (PC–PC), combined MD-PC methods (cMD-PC).

Chromatographia 21, 105-109 (1986). Reversed-phase TLC and HPTLC of barbiturates and pyrazolones with various solvent systems. Investigation and comparison of the behaviour of the stationary phases against some characteristics of the mobile phases