J. Chromatogr. A 766, 165-170 (1997). Determination of the RM values of substituted piperazine derivatives on silanized silica with buffered aqueous acetone with or without n-octylamine. Comparison of the difference between the chromatographically determined lipophilicity of substances containing aromatic nuclei that are separated by a sufficiently flexible chain and that calculated on the basis of tabulated fragmental constants.

J. Planar Chromatogr. 11, 141-144 (1998). TLC of 26 compounds derived from 1,2-diphenylhydrazine (half of which were stable free radicals) on silica gel or alumina with toluene and on silica gel impregnated with paraffin oil with different mixtures of water, acetone, and 2-propanol. Detection by direct observation. Rf values, lipophilicities, and specific lipophilic surface areas were determined. Simple, inexpensive, quick, and sensitive TLC procedure.

J. Liq. Chrom. & Rel. Technol. 22, 51-75 (1999). Examination of the retention behavior of 13 phenols and 19 aromatic amines on modified TLC plates using normal-phase eluent systems (polar modifier (2-propanol, ethyl methyl ketone, dioxane, tetrahydrofuran, diisopropyl ether) in n-heptane) and comparison of the results with those obtained on bare silica gel. - Visualization under UV 254 nm.

J. Planar Chromatogr. 13, 384-387 (2000). TLC of enantiomers (1-acenaphthol, phenoxymethyl oxirane, 4-chlorophenoxymethyl oxirane, 2-methylphenoxymethyl oxirane, trityloxymethyl oxirane) on microcrystalline cellulose triacetate (MCTA) with 2-propanol - water resp. ethanol - water 4:1 or of 7 glycidyl ethers with mobile phases containing derivatized and underivatized cyclodextrins on chiral stationary phases. Detection under UV 254 and 366 nm. Quantitation by densitometry in reflectance mode at 254 nm.

J. Liq. Chrom. Rel. Technol. 27, 1981-1992 (2004). Study of the interaction between cholesterol and non-ionic surfactants by reversed-phase TLC using cholesterol-impregnated TLC plates and methanol - water mixtures. TLC on aluminum oxide impregnated by overnight pre-development in a solution of cholesterol dissolved in chloroform - acetone 1:1. 20 surfactants were tested (Arcopal, Sapogenat, Tween, Genapol, Myrj, and Brij). The intercept obtained from linear regression anal. (RM0), being characteristic for the strength of interaction, and the slope (b), being related to the surface area of surfactants in contact with cholesterol, were detected. Stepwise regression anal. (SRA) was performed to find relation between the structural parameters of surfactants and strength of interaction. Stacking interaction exists between cholesterol and the aromatic ring of the surfactants. The number of ethylene oxide units and length of the carbon chain in the surfactant molecules have significant effect on the strength of the interaction between the compounds studied.

J. Planar Chromatogr. 18, 432-436 (2005). TLC of nine benzimidazole and benztriazole derivatives on silica gel impregnated with paraffin oil with methanol - water mixtures. After development the plates were dried and examined under UV light at 254 nm. A quantitative structure-retention relationship (QSRR) correlation study was performed.

Anal. Chim. Acta 593 (2), 224-237 (2007). Presentation of a novel atomic-contribution system for predicting RM values by TLC on silica gel with 13 screening systems where the large experimental datasets (198-761 RM values) are available. RM values could be predicted with less than 0.5 % error in the majority of solutes (besides several outliers), which corresponds to an hRf value difference of 28 in the worst case. Validation of the system by dividing the data into training and validation datasets, proving its accuracy. The main reason for outliers were large conjugated heterocycles, quarternary ammonium cations, large amount of polar atoms or very simple but unique molecules. The method invloves easy manual calculation and no need for a software. It was applied to predict retention of new compounds in existing chromatographic screening systems.

determination of log P of (E)-3-benzylidene-2,3-dihydro-1-benzopyran-4-ones by RP-TLC. Effect on log P of incorporation of oxygen atom into carbocyclic chalcone analogues. J. Planar Chromatogr. 26, 284-288 (2013). Log P-TLC of (E)-3-benzylidene-2,3-dihydro-1-benzopyran-4-ones on silica gel with methanol - water 3:2. Detection under UV light at 254 nm. The effect of positions (ortho, meta, and para) of the aromatic substituents in the compounds was evaluated.