Polish J. of Pharmacology and Pharmacy 41, 191-199 (1989). TLC of phenoxyethylpiperazine derivatives on silica with chloroform - methanol - 25% NH3 9:1:0.2. Preparative TLC with quantities 100-200 µg.

Chinese J. Chromatogr. (Sepu) 11, 379-380 (1993). TLC of N-benzyl carbazole, the product of photo induced SRN 1 reaction of carbazole and benzyl chloride on silica with 1,2-dichloroethane - cyclohexane 1:4. Quantification by densitometry at 287 nm.

J. Planar Chromatogr. 11, 283-294 (1998). Examination of the retention of different groups of model substances - 16 phenols, 12 amines, 6 quinoline bases - on polar adsorbents - silica gel, alumina, and Florisil - developed with isoeluotropic eluents. The DRM (Dlogk, selectivity) parameters for different substituents of the compounds were compared as parameters of the energies of adsorption of the various chromatographic systems. The DRM values for substituents were correlated with their reactivity constants.

Chromatogr Sci. 50 (3), 157-161 (2012). Study of the lipophilicity of 12 new synthesized derivatives, the first eight compounds have as a basic chemical structure aryliden–hydrazino-selenazoles and the second group of the three compounds belongs to aroyl–hydrazinoselenazoles. HPTLC on RP-18 with methanol–water mixtures in different ratios. The linear correlation between RMw and the methanol–water ratios showed high values for the correlation coefficient. Determination of the chromatographic hydrophobic index by using the ratio –RMw/S, giving the values ranged between 99 and 73, and a good linear correlation between RMw and the slope. The log P values are also calculated. Formation of the matrices with RMw and log P and a principal component analysis (PCA) was implemented. Extraction of the information from PCA by plotting the obtained matrices. The compounds can be grouped by analyzing the scores into one containing nine compounds, and other containing three compounds, each group of compounds with the same basic chemical structure.

(Hungarian). (Synthesis of 6-methoxy-pyridazine-3- carbaldehyde.) TLC of 6-methoxy- (1,2,3)-triazolo (1,5,6)-pyridazine on silica with ethyl acetate. Detection by UV.

Study of the TLC equations for a series of ionizable quinolone derivatives. J. Chromatogr. 678, 127-137 (1994). Measurement of the RM values of a series of antibacterial quinolones at pH 9.0 and 1.2 using a reverse-phase TLC system on silicone DC 200-impregnated silica and acetone, methanol or acetonitrile as the organic modifier of the mobile phase. Good correlations between experimental and extrapolated RM values. Investigation of the relationship of the RM values and the nature of the organic solvent, and between intercepts and slopes of the TLC equation in a series of congeneric compounds. Discussion of the factors affecting chromatographic congenerity.

J. Planar Chromatogr. 21, 201-204 (2008). TLC of porphine and its complexes with Cu(II), Ni(II), and Zn(II) on silica gel with chloroform - n-hexane 5:5, 3:2, and 7:3; and on RP-18 with methanol, methanol - water 9:1, ethanol, and ethanol - water 9:1 at 5+/- 2, 15+/- 2, 25+/-2, 35+/-2, 45+/2, and 55+/-2°C. Detection under white light. An increased temperature results in increased Rf values.

Study of components of hematoporphyrin derivative. J. Planar Chromatogr. 1, 371-372 (1988). OPTLC of hematoporphyrin derivatives on silica with acetone - ethyl acetate - water - hydrochloric acid 37% 200:200:20:0.04. Detection by densitometry at 400 nm.