CBS 100, 9 (2008). The drying step contributes significantly to the overall experimental variability of the TLC system. Comparison of different drying procedures demonstrated that homogenous, rapid and heatless drying by the automatic developing chamber ADC 2 reduced the overall standard deviation by up to a factor of 3 compared to manual use of a hair dryer.

J. Planar Chromatogr. 24, 181-187 (2011). Study of the TLC separation of polar and ionic substances in carbon dioxide and ammonia atmospheres on silica gel plates with reduced moisture content by single and multiple development with countercurrent drying. The possibility of simple gradient separation by passage of polar vapor was shown. TLC of a six-dye and a two-dye sample on silica gel with toluene. The technique and a special apparatus is described. The active gas flow over the adsorbent layer has several advantages for the separation of polar ionic substances: activation of the adsorbent, stabilization of the mobile phase pH and ionic strength, saturation of the adsorbent with mobile phase, evaporation of the mobile phase and creating gradients is possible by simple passage of gases in one or other direction over the adsorbent layer.

J. Planar Chromatogr. 29, 7-14 (2016). Simultaneous chromatography and electrophoresis of a dye mixture containing crystal violet, methylene blue, bromocresol green, and methyl red on silica gel with propanol – 50 mM glycine buffer 2:1 and a pressure of ~32 bar. Most separations occurred at 818 V. Nearest neighbor descriptors and relative spot capacities were used to determine separation quality with the proposed systems.

Anal. Chem. 318, 228-233 (1984). Dünnschicht-Chromatographie mit Gradienten-Elution im Vergleich zu Säulenflüssigkeits-Chromatographie. (TLC-PMD, thin-layer chromatography with gradient-elution in comparison to HPLC.) Description of the new multiple development technique (now called "AMD)" Automated Multiple Development) using a stepwise elution gradient which starts with the most polar and ends with the nonpolar solvent. Comparison with HPLC. Multiwavelength scanning including absorbance and fluorescence.

V. Danube Symposium on Chromatography, Yalta, November 11-16, 1985. The separation power of FF-TLC can be optimized according to the flow velocity of the mobile phase. The optimum flow rate depends on the particle size of the stationary phase bed. 0.10-0.15; 0.12-0.17; 0.20-0.28 mm/sec have been found as the optimum speed elution using Fixion 50 x 8, TLC silica and HPTLC silica.

GIT Suppl. Chromatogr. 3, 32-38 (1986); part II: GIT Fachz. Lab. 10, 993-998, (1986). Principle and applicability of TLC using mobile phase pressure of up to 80 bars. Circular development of single sample injected in-flow and of multi samples applied on the dry layer. Use of normal and reversed phase material, including multiple use of the same layer. Quantification of the chromatograms by direct image processing using optical sensitive RAM.

European Chromatography News 2, 18-21 (1988). Description of some of the many recent innovations like advances in TLC plates, sample application, development techniques and instrumentation for detection, quantification and identification. TLC is described as a sensitive instrumentalized quantitative analytical technique.

J. Planar Chromatogr. 2, 53-61 (1989). Construction of the new instrument with the principle of five rotation planar chromatographic methods. The efficiency of the RPC methods demonstrated with the separation of saponin glycosides from Panax ginseng and some furocoumarin isomers from Pastinaca sativa. For preparative separation, an extract from Peucedanum palustre was chosen.