J. Planar Chromatogr. 18, 408-414 (2005). With RSD up to 10 % by far the largest source of uncertainty, secondary chromatography is the main reason for poor precision in TLC. During the drying process mobile phase evaporates from the upper surface of the plate, and molecules of separated components inside the layer move up or down. The experimenral results show the strong dependence of the intensity of the reflected light on the position of the spots inside the layer, giving an idea how to construct a device for drying and derivatization of TLC plates. Results obtained by the new TLC dryer significant improved reproducibility and precision.

Chromatographia 17, 79-82 (1983). Investigation of Cd2+, Cu2+, Fe3+, Mn2+, Ni2+, Pb2+ and Zn2+ on bonded stationary phases. Consideration of the effect of structure, surface loading, type of silica and mobile phase.

Chromatographia 18, 18-20 (1984). Unimpregnated cellulose layers proved to be suitable for the determination of the lipophilic character of 14 3,5-dinitrobenzoic acid esters under reversed phase TLC conditions. TLC on impregnated silica, cellulose and alumina with methanol mixtures. Detection by UV.

J. LIquId Chromatogr. 7, 1273-1288 (1984). TLC of 12 dansyl amino acids, PAH (pyrene, benzanthracene, benzo(a)pyrene, benzo(e)pyrene) on silica, RP-18, alumina, cellulose, polyamide. Detection with alpha, beta, gamma -cyclodextrin, sodium dodecyl sulfate, cetyltrimethylammonium chloride, sodium cholate, Zwittergent 3-12. Fluorometry at 256 nm for PAH's, 320 nm for dansyl amino acids.

Analytical Chem. 68, 3885-3891 (1996). Investigation of the use of a scientifically operated charge-coupled device (CCD) for the detection and quantification of aflatoxins on a HPTLC plate. A nebulizer-based sample application system was utilized to transfer the sample quantitatively onto the HPTLC plate without disturbing the sorbent layer. Fluorescence excitation of the aflatoxins was accomplished with an ultraviolet transilluminator, which caused the analytes of interest to emit in the blue-green portion of the visible spectrum. The dynamic range, sensitivity, accuracy, and precision of the system were evaluated. Detection limits of the aflatoxins were determined to be in the low picogram range.

Chromatographia 21, 687-692 (1986). Comparison of results from commercial precoated TLC plates and home-made bonded phases for TLC examined by 29 Si and 13 C. NMR of solid samples reveal differences in the degree of silylation obtained with different silanes and under different reaction conditions. NMR spectra can also be used to explain the cause of the wettability problems encountered with certain types of precoated TLC plates. Chemically bonded phases, 29 Si and 13C NMR.

Chem. J. of Chinese Univ. 34 (6), 1347-1352 (2013). TLC is widely applied as an analytical technique due to its distinguishing features like its intuitiveness, high performance, inexpensiveness, etc., however, gives insufficient qualitative information of the separated ingredients. On the contrary, FTIR is a strong technique in functional identification and qualitative analysis towards pure compounds rather than mixtures. TLC-FTIR combines the merits of both techniques and realizes in situ detection of the interested analytes. In the search for a stationary phase suitable for TLC-FTIR the processing procedure for barium fluoride particles was improved. The particle size was minimized to enhance separation performance and to attenuate the spectrum baseline elevation caused by the effect of light scattering. Preparation of barium fluoride particles by reaction of 100 mL of a 0.6 mol/L barium chloride solution and 150 mL of a 0.95 mol/L sodium fluoride solution. The resulting sediment was filtered, washed, and burned in a Muffle furnace at 600 °C for 3 hours, which produced particles with a size of approx. 100 nm. The TLC plates were coated by precipitation/evaporation method: 5 g barium fluoride powder and 50 mL distilled water were mixed to a suspension, which was poured into a vessel containing the basal gold-plated glass sheet placed horizontally. After complete evaporation of the liquid a barium fluoride TLC plate was obtained with a smooth, even and mechanically strong surface. Demonstration by TLC of rhodamine B and malachite green on the new barium fluoride plate with methanol – acetone 3:10 with chamber saturation for 30 min. In situ identification of the separated zones by microscopic reflection FTIR. The results indicated that TLC-FTIR based on barium fluoride plates has wide application prospect.

Chem. (FENXI HUAXUE) 12, 455-458 (1984). (Chinese). (Studies on micellar solution as mobile phase in liquid chromatography. I. Use in thin-layer chromatographic separation of drugs). TLC of 33 drugs including sulfanilamides, vitamin B, antipyretics and adrenalines on polyamide with micellar aqueous solutions (SDS). Detection by various staining reagents and by UV.