J. Planar Chromatogr. 16, 183-185 (2003). TLC of 5 dyes (crystal violet, Sudan Black, Sudan II, Sudan III, dimethylaminoazobenzene) on alumina and on n-octyl alumina with benzene - chloroform 8:2. TLC of 4 platinum complexes with acetonitrile - water 4:1. Detection under UV 254 nm. The n-octyl modified alumina was prepared by reaction of alumina with n-octyltrichlorosilane; plates were prepared from the slurry of the sorbent, containing polyvinylpyrrolidone as binder and an inorganic luminophor (zinc and calcium silicate activated with manganese). The stationary phase has been characterized by elemental analysis, measurement of specific surface area, IR spectroscopy, and by chromatographic testing.

J. Planar Chromatogr. 11, 325 - 329 (1998). Description of a new type of quasi-column TLC using narrow planar sorbent layers which can be used for separation both in classical TLC and in forced-flow TLC (FFTLC). Some advantages of polycolumn plates over the traditional variety are shown by use of synthetic dye mixtures, e.g. greater separation efficiency, shorter separation time.

J. Chromatogr. A 1187 (1-2), 250-259 (2008). Description of a simple, fast and robust temperature-controlled system for non-forced-flow micro-planar chromatography. Micro-TLC plates can be developed in horizontal position under controlled temperature and with temperature gradients between - 20 and 80 ºC. Saturated or unsaturated chamber conditions are possible and only small amounts of mobile phase are required (0.3 to 1 mL). Plate temperature equilibration is obtained within 5 to 12 min and a typical non-forced flow run can be finished within only 5 to 20 min. On the micro-plate more than 10 spots can be separated in one direction or up to 180 spots per plate for two-dimensional and multi-development runs. Demonstration of fast and efficient separation of a number of analytes including fullerenes, cyclodextrins and steroids as well as complex samples obtained from natural products and pharmaceutical formulations. Thermostated micro-planar chromatography can be applied in retention and quantification studies.

J. of Chromatogr. A 1218 (45), 8273-8280 (2011). Study of the chromatographic processes in a new variation of a Smin-chamber with a counter plate (a Smin(CP)-chamber) positioned at a small distance above a separating plate. The adsorption layers of the separating plate and the counter plate face each other. Use of a dry counter plate in the Smin-chamber lead to an increase of up to 50 % in the volume of the mobile phase that migrates through the separating plate. This lead to higher Rf values, especially in the lower Rf range, improved the efficiency of separation more than two times, and increased the peak resolution of the method by 25 %. However there was also an increase in the experiment duration by 20-50 % depending on the size of the used plate.

J. Planar Chromatogr. 29, 66-71 (2016). Controlled gas phase HPTLC of benzoic acids (benzoic o-, m-, p-hydroxybenzoic, 2,4-dihydroxybenzoic, nitrobenzoic, o-, m-, p-aminobenzoic, o- and p-chlorobenzoic, o- and p-bromobenzoic, and o-phthalic acids) on silica gel, RP-18 and polyamide-11 with hexane – 2-propanol 19:1. This variant was based on the use of a gas phase (carbon dioxide, ammonia or acetic acid) moving over the TLC plate for regulation of the stationary and mobile phases. The most considerable change in the retention of benzoic acid derivatives was observed for normal-phase plates due to change of acid-base properties of stationary and mobile phases.

Part 2: Comparative study on centrifugal layer chromatography (CLC) and SCLC for the separation of furocoumarin isomers. J. High Resol. Chromatogr. 8, 132-134 (1985). Preparative separation of furocoumarin isomers (isobergapten, pimpinellin, bergapten, isopimpinellin, sphondin) on silica containing calcium sulphate hemihydrate with hexane - THF 7:3, hexane - chloroform - THF 63:16:1, dichloromethane. Detection by UV 254 and 366 nm.

J. High Resol. Chromatogr. 8, 265-266 (1985). Description of gravity flow circular TLC for preparative separations by which the polycyclic aromatic hydrocarbon fraction of a creosote extract is isolated. A 200 Ál concentrated extract spotted at the center of the plate positioned 1 cm beneath the stem of a separation funnel. The spot was eluted with hexane, and the PAH-band focused with benzene. Detection under UV light.Polycyclic aromatic hydrocarbons, preparative TLC.

J. High Resol. Chromatogr. 10, 352-356 (1987). Description of fundamental factors causing the "disturbing zones" in OPLC. Possibilities for the elimination were discussed. They consist of a pre-run with hexane in the case of apolar substances, or with hexane or a solvent in which the components are unable to migrate in the case of polar substances.