J. Planar Chromatogr. 5, 80-86 (1992). Forced-flow planar chromatographic (FFPC) techniques such as over-pressured layer chromatography (OPLC) and rotation planar chromatography (RPC) have been used to study the influence of the forced eluent flow on the dimensions of the spot. The correlation between the eluent flow and the transverse spot dimension on TLC and HPTLC layers has demonstrated that diffusion can be dramatically reduced up to certain eluent flow; at higher eluent flows diffusion remains constant or increases only slightly.

Anal. Chem. 66, 3449-3457 (1994). Investigation of the feasibility of utilizing some of the hydrophobic ionenes in an analogous manner as the pseudophase in TLC. TLC of o-, m-, and p-aminobenzoic acids on polyamide with aqueous solution of [3,16]-ionene. Detection under UV 254 or 366 nm. Discussion of some other features of the title materials in analytical applications.

J. Chem. Educ. 72, 1136 (1995). Description of a modified glass rectangular tank for use as a developing chamber for ascending TLC for a first-year analytical chemistry class.

J. Planar Chromatogr. 12, 275-279 (1999). Description of a technique using sequentially connected flexible TLC plates with different adsorbents. A new mathematical approach is proposed for treatment of selectivity in this version of TLC. The technique is illustrated by the separation of test mixtures of dyes.

J. Planar Chromatogr. 15, 377-379 (2002). TLC of methyl red, naphthol red, methyl yellow, and azobenzene as test substances on silica gel and on silica gel covered with a polymeric membrane. Chromatograms were developed both without mobile phase pressure and with application of pressure. The simple system with forced flow of mobile phase can improve the separation of mixtures.

(Russian). Firm laboratory. Evaluation of materials 12 (70), 3-13 (2004). The state of the art and the historical development of EO-TLC is described. Determination of polysaccharides, steroids, colorants, pirimicarb and its analogs (with additional methyl, methoxy and carbamate groups) on silica gel with ethanol or RP18 with water - ethanol 1:4, water- acetonitril 11:9. Frequently used voltages are in the range of 1 - 0,1 kV/cm. Detection of polysaccharides with potassium-iodine reagent. Monitoring of electro-osmotic flow by fluorescence detection (addition of pyrene into mobile phase) or in the vis range (addition of ß-carotene into mobile phase).

J. Planar Chromatogr. 24, 357-359 (2011). TLC of benzo[a]pyrene on RP-18, RP-8, and RP-2 with acetone - ethyl acetate 7:3 in an unsaturated twin-trough chamber. Detection by dipping for 1 s into a solution of 250 mg bis(2,4-dinitrophenyl)oxalate in 40 mL of n-butyl acetate and 5 mL of hydrogen peroxide (upper phase). For videodensitometric evaluation the sheets were measured for 2 min and monitored over a period of 2 h. The reaction energy is transferred to the fluorescent compound (benzo[a]pyrene) which emits light while relaxing from its excited state. The advantage of this chemiluminescence reaction performed on a TLC plate is the improvement of the detection limit by extending the measuring time. The detection limit is 50 pg benzo[a]pyrene which is identical to that achievable in chemiluminescence HPLC. The calibration curve for benzo[a]pyrene was linear in the range of 50-8000 pg. The new procedure overcomes the problem of uneven illumination with CCD cameras.

Anal. Biochem. 149, 480-483 (1985). Description of a simple visualization method for sulfolipids on TLC plate, based upon formation of complex between anionic sulfolipid and blue cationic compounds by spraying with an acidic solution of azure A. Detection limit 0.5 nmole of sulfolipids without interference from other lipids. Visualization of sulfolipids as clear dark blue bands on a light blue background after the unbound dye washed out by brief soaking in methanol.