J.of Medicinal Chemistry 31, 650-656 (1988). TLC of polyoxins on silica with 1-butanol - acetic acid - water 4:1:2. Detection under UV or by spraying with ninhydrin in butanol.

Proc. 6th Int. Symp. Instrum. Planar Chromatogr., (Interlaken 1991), Inst. Chromatogr., Bad Dürkheim, FRG, 157-173 (1991). Determination of title substances on HPTLC-NH2 plates. Qualitative analysis in human urine and serum, 2-fold development with 1-propanol - nitromethane - water - glacial acetic acid 30:30:10:1. Detection under UV or by heating at 150°C. Quantitative analysis of uric acid, creatine, creatinine and glucose in human urine; two-fold development with 1) acetonitrile - water 70:30, 2) ethyl acetate - pyridine - water - acetic acid - propionic acid 50:50:10:5:5. Quantitative analysis of glucose, creatinine and uric acid in serum; two-fold development in 1) acetonitrile - water 80:20, 2) ethyl acetate - pyridine - water - glacial acetic acid - propionic acid 50:50:10:5:5. Quantitative determination by fluorescence 366/>400 nm.

J. Planar Chromatogr. 7, 399-405 (1994). Investigation of retention of azines and diazines in RP-TLC with RP-2, RP-8 and RP-18 material and methanol - water eluents; the practical usefulness of the retention model employed was established for pyrazine, quinoxaline, pyridine, quinoline, c-picoline, 2-methylquinoxaline, for their dehydrocondensation products, and for their sulfur derivatives. Visualization with Dragendorff's reagent, followed by additional spraying with sulfuric acid.

III. TLC on silica of 2,3,4-trisubstituted tetrahydroisoquinolinones. J. Liq. Chromatogr. & Rel. Technol. 26, 1255-1266 (2003). Application of LSChrom software TLC of 12 tetrahydroisoquinolinones on silica gel with 7 different mobile phases, e.g. heptane - ethyl acetate 56.7:43.3, heptane acetone 73.7:26.3, heptane - isopropanol 83.4:16.6 and toluene - acetonitrile 83.3:16.7. The automatic selection of the mobile phases is based on the structure of any compound, literature data for the adsorption properties of the relevant structural fragments (groups) available in the structure and a many calculations.

J. Planar Chromatogr. 20, 227-230 (2007). When the components of a reaction mixture cannot be quantified by UV-visible spectrophotometry because of overlapping of their absorption bands, the components can be separated and quantified by spectrodensitometric thin-layer chromatography (SDTLC). As example serves an aminolysis reaction mixture. TLC of imidazolidine and 1-(p-chlorophenyl)-2-phenyl-3-methylimidazoline on silica gel in a twin-trough chamber saturated for 5 min with chloroform - methanol 4:1 for the first development to a distance 55 mm, and after drying development with benzene to a distance of 65 mm. Densitometric scanning at 260 nm in absorption mode.

62nd Indian Pharmaceutical Congress Abstract No. F-264 (2010). TLC of lamivudine, zidovudine and nevirapine on silica gel with chloroform – methanol 9:1. The hRf values were 7, 46 and 77 for lamivudine, zidovudine and nevirapine, respectively. Quantitative determination by absorbance measurement at 265 nm. The method was linear in the range of 90-210 µg/band, 180-240 µg/band and 120-280 µg/band for lamivudine, zidovudine and nevirapine respectively.

62nd Indian Pharmaceutical Congress Abstract No. F-339 (2010). TLC of drotaverine hydrochloride (DRT) and etoricoxib (ETR) on silica gel with toluene – ethyl acetate – methanol 1:4:1. The hRf values were 45 and 66 for DRT and ETR, respectively. Quantitative determination by absorbance measurement at 304 nm. The method was linear in the range of 200-700 ng/band for DRT and 225-787 ng/band for ETR. The recovery was in the range of 99.9-100.1 % for both drugs.

J. Planar Chromatogr. 29, 281-286 (2016). HPTLC of newly synthesized cycloalkylspiro-5-hydantoins (derivates of 3-(4-substituted benzyl)-cyclopentanespiro-5-hydantoin, 3-(4-substituted benzyl)-cyclohexanespiro-5-hydantoin, and 3-(4-substituted benzyl)-_x000D_cycloheptanespiro-5-hydantoin) on RP-18 with varying content of methanol 50–90%. Multivariate analysis enabled the classification of the lipophilicity and structural properties of the investigated compounds.