J. Liq. Chrom. & Rel. Technol. 25, 1543-1559 (2002). Review of some experiences in practical aspects of TLC including the role of particle size of silica gel, the use of different oxide adsorbent layers, the use of silica gel containing silver ion in sesquiterpene separations and of boric acid and sodium arsenite impregnated layers for derivatives of vicinal diols from hexoses. Experiments with e.g. different particle size silica gel, with new adsorbents titanium dioxide, zinc oxide, zirconium dioxide, and stannic dioxide, and separation of sesquiterpenes by argentation TLC/GC and by GC/TLC are described.

Relation between mobility and molecular size shown by size-exclusion chromatography. J. Chromatogr. A 1024 (1-2), 227-243 (2004). TLC of coal tar pitch and a petroleum vacuum residue with pyridine, acetonitrile, toluene and pentane. The bands of material detected were recovered in 1-methyl-2-pyrrolidinone (NMP) solvent and examined by size-exclusion chromatography (SEC) in NMP eluent. The relation between elution time in SEC and mobility on the TLC plate indicated that molecular size increased steadily with increasing immobility on the plate. This relation was reinforced by UV fluorescence spectroscopy in that the fluorescence moved to longer wavelengths with increasing immobility. The molecular size of the material excluded from the porosity of the SEC column remains undefined; some excluded material was found in all of the fractions from both samples. The valley of zero intensity separating the retained material from the excluded material may suggest a change of structure from near-planar in the retained region to three-dimensional in the excluded region.

J. Chromatogr. Sci. 24, 302-306 (1986). Determination of retention data of 37 ring-substituted aniline derivatives in 28 different halogenated alkanes as solvents on silica plates. Solvent strength and selectivity depend significantly on the dipole moment and dielectric constant of the solvents

J. Planar Chromatogr. 4, 385-391 (1991). RPTLC of 5 monohydroxy and 5 dihydroxy aromatic compounds on RP-2, RP-8, and RP-18 silica. Results obtained justify the conclusion that a new thermodynamic interpretation can duly be ascribed to the Rf coefficient.

J. Planar Chromatogr 9, 368-374 1996). Detection of the displacement mechanism of solute retention in reversed-phase TLC systems with methanol - water eluents. For this purpose solutes were selected from three classes of organic compounds, higher fatty alcohols and aliphatic mono- and dicarboxylic acids, compounds which are characterized by an ability to self-associate by hydrogen-bonding and can, therefore, also form hydrogen-bonds with active sites on the silica.

J. Chromatogr. B 846 (1-2), 334-340 (2007). Salting-out TLC of sulphonamides on silica gel with aqueous solutions of salts (sulphates, chlorides, nitrates, phosphates, acetates, and thiocyanates) showed that the applied salts have different effects on the retention of sulphonamides according to Hofmeister's classification (e.g. kosmotropes, chaotropes and neutral). Parameters of the linear regression analysis were compared with QSAR data of dependences between the RM values and salt concentration. Chromatographic data obtained by salting-out TLC showed not only the physico-chemical properties of the examined compounds but also information about their activity. The method was suitable for prediction and classification of sulphonamide drugs by localization of other structurally similar compounds with antagonistic activity towards sulphonamides.

J. Liq. Chromatogr. Relat. Technol. 36, 2363-2377 (2013). The impact of substituent of benzanilide moiety on retention of 14 (alkoxy-phenyl)benzamides was assessed by TLC on silica gel and aluminium oxide with various mixtures of n-pentane, benzene and acetone. The TLC method allowed for quantitative structure relationship (QSRR) studies with benzanilide derivatives.

J. Liq. Chromatogr. Relat. Technol. 38, 1097-1103 (2015). HPTLC of 15 polyoxygenated steroids on unmodified silica gel with non-aqueous binary solvent systems containing acetone – n-hexane or acetonitrile – dichloromethane. Lipophilicity parameters obtained by normal phase chromatography were validated in relation to corresponding reverse phase chromatographic data.