J. Planar Chromatogr. 24, 53-56 (2011). HPTLC of the pesticides temephos and fenitrothion on silica gel, prewashed with methanol, with acetone - hexane 3:7 in an unsaturated twin-trough chamber. Quantitative determination by densitometry in absorbance mode at 290 nm. The hRf values were 55 and 69. LOD was 20 ng for temephos and 10 ng for fenitrothion. Recovery was 80-107 % with relative standard deviations of 4.4-20.2 %.

Food Control. 31, 218-223 (2013). HPTLC of aflatoxin B1 (AFB1) on silica gel with chloroform - acetone 9:1. Quantitative determination by fluorescence measurement at 366 nm. The method allowed for determination of inhibitory effect of essential oils on AFB-1 production by A. flavus.

J. Planar Chromatogr. 29, 477-479 (2016). HPTLC of baygon (1), carbaryl (2) and carbofuran (3) on silica gel with hexane ‒ ethyl acetate 9:1. Detection by spraying with 10 % sodium hydroxide solution followed by o-toluidine reagent (5 g o-toluidine dissolved in 14 mL HCl and filled up to 100 mL with distilled water) combined with 10 % sodium nitrate. The hRF values were 48 (orange) and 51 (faint violet) for (1), 46 (orange) for (2) and 46 (violet) and 49 (violet) for (3). _x000D_

Lipids 17, 650-655 (1982). For preparative separation silica plates were used with hexane - ether 6:4. For separation of hydrogenated oils into their various components, multiple development (4 or 5x) TLC was carried out with ether - benzene 1:99 followed by ether - benzene 3:97. Analytical TLC components were visualized by charring with sulfuric acid-dichromate or with iodine vapors. reparative TLC: bands were located by spraying with ethanolic dichlorofluorescein, followed by viewing under UV. The components of the seed oil of trewia nudiflora and mallotus phillipinensis were chromatographed and compared.

J. Agric. Food Chem. 32, 1434-1440 (1984). TLC-separation of sulfamethazine on silica with chloroform - acetone 1:1 or chloroform - methanol - NH3 100:100:1 in one or two dimensions. Detection by UV 254 nm or autoradiography.

Quantitative determination of TLC-separated enantiomers. GIT Suppl. Chromatographie 3, 27-32 (1987). By means of nine examples (D-Phe, tert.-leu, 5, 5-dimethyl-thiazolidine-4-carboxylic acid, O-Bzl-Ser, L-4-iodophenylalanine, L-he, L-tyr, L-methyldopa, D-leu-L-leu) is demonstrated, that the quantitative determination of TLC-separated antipodes is a useful method for daily routine process in any laboratory. The resolution of the enantiomers is excellent, the respective antipodes could be evaluated at trace levels, the limit of determination is found to be at or above 0.1 %. In comparison to the "classical methods" GC and HPLC, TLC offers separation in parallel runs.

J. Liquid Chrom. 9, 1591- 1602 (1986). TLC of 18 trichothecenes on silica RP-18 with ethanol - water - acetic acid 65:35:1 + 0.5% NaCl; Visualization with anisaldehyde and chromotropic acid spray reagents. GC and TLC methods have a greater sensitivity than HPLC for the underivatized mycotoxins.

J.A.O.A.C. 71, 949-953 (1988). TLC of ochrotoxin A on RP18 with methanol - water (adjusted to pH 2.1 with phosphorus acid) 70:30. Detection under UV 366 nm. Quantification after scraping of spots and elution.