Chromatogr. Sci. 47, 251-220 (1990). A review with 131 references on sorbents and precoated layer for normal-phase TLC, partition TLC, reversed-phase TLC and ion-exchange TLC.

J. Planar Chromatogr. 4, 127-133 (1991). Comparison of the adsorption properties of Florisil and silica by TLC of aromatic acids and aldehydes in three solvent systems under equilibrated conditions. Discussion of specific differences in adsorption, the influence of polar modifier on the retention, and structural and steric effects of the compounds investigated. These differences enable the choice of the best system for the separation or micropreparative isolation of isomers from natural mixtures.

J. Planar Chromatogr. 6, 252-255 (1993). Comparison of the chromatographic performance of TLC plates coated with 3 µm spherical and 5 µm angular particles using a newly designed apparatus suitable for high pressure (>100 bar) OPLC. The best HETP values obtained were 17.3 and 34.2 µm particles, respectively. These high values were probably caused by the large particle size distribution. The problem of the comparatively low mechanical stability of the 3 µm layers (on glass plates) was solved by using a stainless steel membrane.

J. Planar Chromatogr. 8, 346 - 348 (1995). Survey of the advantages of the new aluminium-backed, amino-modified silica gel layers. Special emphasis is laid on the possibility of thermochemical, reagent-free conversion of different functional groups to fluorescent derivatives after thin-layer chromatographic separation. - TLC of carbohydrates, steroids, and aromatic carboxylic acids on NH2-modified silica. Thermochemical activation was performed with a TLC plate heater. Detection and determination of detection limits under UV 366 nm or by densitometry at 366 nm.

Biomed Chromatogr. 11, 286-288 (1997). TLC on silica gel impregnated with (1R,3R, 5R)-2-azabicyclo[3,3,0]octan-3-carboxylic acid with 0.5 M NaCl - acetonitrile in different ratios and addition of methanol in some cases. Visualization under UV 254 nm for dansyl-DL-amino acids. Development with different combinations of acetonitrile - methanol - water and detection by spraying with 0.2% ninhydrin in acetone for amino acids.

J. Planar Chromatogr. 14, 224-233 (2001). Review of findings on the susceptibility of the organic chemically bonded ligands to hydrolytic cleavage from the silica matrix for the most common TLC-type stationary phases, i.e. RP-18, RP-8, CN and DIOL. This process was induced by repeated (i.e. one-, two-, four-, and eightfold) development of these phases with mixed mobile phases comprising methanol, water, and buffers of different pH. Quantification of the extent of hydrolytic cleavage of the different ligands from the silica gel surface was basically achieved by means of Raman spectroscopy, although other analytical techniques like elemental (combustion) analysis, thermogravimetry, and differential scanning calorimetry were also employed. Also investigation of the factors influencing the efficiency of the hydrolytic cleavage.

CBS 92, 5-7 (2004). Comparison of irregular HPTLC and spherical lichrospher phases relating to development time, retention, selectivity, separation power, and sensitivity of detection.

Analyst 112, 1171- 1172 (1987). Description of a simple device for applications of samples to TLC plates with the reproducibility comparable to that of standard methods and suitability for quantification. Several examples were given.