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.

Li. N-alkylation of Hantzsch 1,4- dihydropyridines with esters of halogenocarboxylic acids. Coll.czechoslov.chem.comm. 48, 608-616 (1983). TLC of 1,4-dihydropyridine derivatives on silica with 0.4 % methanol in chloroform. Detection by UV and iodine vapours.

Chromatographia 28, 455-458 (1989). Determination of the inclusion complexing capacity of 21 barbituric acid derivatives with a-, ß-, and g-cyclodextrins, with a water soluble ß-cyclodextrin polymer and with 2,6-di-o-methyl-ß-cyclodextrin by charge-transfer reversed-phase TLC on silica with water - ethanol 4:1. Elucidation of the role of the substituents in the complex formation, and comparison of the complex forming capacity of various cyclodextrins.

Part 2. The lipophilicity of 1,6-diaryl-5,7(1H)dioxo-2,3-dihydroimidazo[1,2-a][1,3,5]triazines and 1-aryl-5,6(1H)dioxo-2,3-dihydroimidazo[1,2-a]imidazoles. J. Planar Chromatogr. 13, 130-134 (2000). Determination of the lipophilicity of twenty five new carbonyl derivatives of 1-aryl-2-aminoimidazolines-2 (twenty 1,6-diaryl-5,7(1H)dioxo-2,3-dihydroimidazo[1,2-a][1,3,5]triazines and five 1-aryl-5,6(1H)dioxo-2,3-dihydroimidazo[1,2-a]imidazoles) by RPTLC on commercial RP-18 silica gel plates with methanol - acetic acid - water. RM values for all the compounds were linearly dependent on mobile phase methanol concentration within the range of 60 to 90%.

V. Danube Symposium on Chromatography Yalta, November 11 -16, 1985. Samples of 100 ml urine acidified with acetic acid, urineporphyrins adsorbed on talcum. TLC of methylesters on silica. Densitometry by fluorescence.