J. of Natural Products 51, 966-968 (1988). TLC identification of (5-hydroxy-6,7,3',4',5'-penta-methoxyflavone) on silica with butanol - benzene 2:8. Visualization under UV and by spraying with 10% SbCl3 in chloroform.

J. Planar Chromatogr. 2, 86-89 (1989). TLC and OPLC of formaldemethone and dimedone on silica with chloroform - dichloromethane 35:65 and with acetone. Densitometry by absorbance at 275 nm without and at 535 nm after derivatization with Dragendorff’s reagent.

J. Planar Chromatogr. 3, 336-339 (1990). TLC of diphenylamine, carbazole, indole and p-dimethylaminobenzaldehyde on silica, alumina, and silica mixed either with alumina or cellulose using cyclohexane and benzene in various proportions as mobile phase. Separation of carbazole from diphenylamine has been achieved on alumina with cyclohexane - benzene 1:1.

J. Planar Chromatogr. 6, 112-116 (1993). The use of the colorimeter for standardization of color measurement in thin-layer chromatography, and the handling of the data obtained, have been evaluated. The identification power, expressed as the mean list length (MLL), was 8.32 and 6.34 for visual and colorimetric methods, respectively. When fluorescence measurements were included in the encoding system, the MLL obtained from visual coding dropped dramatically to 2.90. The colorimeter tested was not able to measure UV reflection.

Part 3. Identification of drugs and their metabolites by PCA of standardized TLC data. J. Planar Chromatogr. 7, 233-241, (1994). Principal components analysis of standardized Rf values of 443 drugs and their metabolites chromatographed with four eluent systems provided a two-component model accounting for 70.8% of the total variance. The "scores" plot enabled either identification, or restriction of the range of inquiry to few candidates. This simple, cheap and fast analytical method is of vital importance in the identification of an unknown drug in cases of overdose intoxication or poisoning, and is particularly valuable in the unaided search for drugs and their metabolites in instances when the substance is very polar and cannot be identified by gas chromatography.

J. Planar Chromatogr. 9, 136-137 (1996). TLC of benzylideneacetone on RP-18 silica with methanol - water 7:3. Quantification by densitometry at 285 nm. Sensitivity 0.0050% for visual screening and 0.0017% for quantification by direct spotting.

infected cotton lint by HPLC - UV/FL. J. Agric. Food Chem. 46, 1071-1075 (1998). TLC of kojic acid and derivatives on cellulose with formic acid - ethyl methyl ketone - tert. butanol - water 3:6:8:3. Detection under UV 254 and 366 nm. After elution, lyophilisation and HPLC analysis.

J. Planar Chromatogr. 19, 467-468 (2006). TLC of carbaryl (1-naphthylmethylcarbamate), a common derivative of the widely used N-methylcarbamate insecticide, on silica gel with n-hexane - acetone 4:1 in a saturated twin-trough chamber. After drying the plate was heating at 100 °C for 5 min, cooled, and sprayed successively with 5 % sodium hydroxide solution and with a 1:1 mixture of 2 % diphenylamine solution and 5 % formaldehyde solution. Visual detection of the blue-green zones carbaryl.