J. Planar Chromatogr. 12, 388-391 (1999). TLC of tetrodotoxin on silica gel with the optimized mobile phase n-butanol - acetic acid - water 2:1:1. Detection after immersion in a solution of potassium hydroxide in ethanol for several seconds, drying and heating at 1608C for 20 min. Quantitation by densitometry in fluorescence mode at 365 nm (excitation) resp. 400 nm (emission). Linearity range of the calibration curve was 40 - 1200 ng; the correlation coefficient 0.9995 with a relative process standard deviation of 3.4 % (n = 7). The minimum detectable quantity was equal or smaller than 20 ng. Simple, convenient, versatile, sensitive, precise and accurate TLC method.

J. Agric. Food Chem. 50, 243-247 (2002). TLC of ochratoxin A on silica gel in diethyl ether in a saturated tank, air dried, examined under UV, cut with scissors at ca. 1 cm above the spotting line so as to remove interfering substances that migrated with the solvent front. Then the plate was developed in the opposite direction in toluene - ethyl acetate - formic acid 5:4:1; saturated tank. After drying visualization under UV 366 nm.

J. Chromatogr. 246, 356-259 (1982). TLC on aluminium sheets with chloroform - methanol - NH3 1:1:1. Drying for 30 minutes at 120 °C. Detection by spraying with ninhydrin reagent and heating at 120 °C. Densitometry.

J.A.O.A.C. 65, 884-887(1982). TLC of aflatoxicol and aflatoxins B1 and M1 on silica with hexane - THF - ethanol 7:2:1 or chloroform - acetone 9:1 for B1 ; ether - methanol - water 95:4:1 for M1; toluene - ethyl acetate - acetone 50:15:15 for aflatoxicol. Detection by UV. Detection limits: 0.03 mg/g for B1; 0.05 mg/g for M1 and 0.01 mg/g for aflatoxicol.

J. Chromatogr. 290, 83-96 (1984). Reversed-phase thin-layer chromatographic conditions were investigated for nineteen peptide-type antibiotics with molecular weights between 102 and 25000 and of different chemical characteristics, to find mobile phases giving Rf values between 0.05 and 0.95. 27 different mobile phases were employed, representing three organic modifiers, three buffers and three pH values.

J.A.O.A.C. 68, 643-645 (1985). TLC of sterigmatocystin on silica with benzene - methanol - acetic acid 85:10:5. Detection by spraying with aluminium chloride and heating at 110 °C for 5 minutes, followed by repeated spraying with silicone - ether mixture and heating at 110 °C for about. 3 minutes. Quantitation by fluorescence densitometry. Detection limit 2 mg/kg, limit of determination 5 mg/kg.

Chinese J. Chem. World (Huaxue Shijie) 34, 25-27 (1993). TLC of roxithromycin on silica with dichloromethane - acetone - aqueous NH3 45:5:1, and dichloromethane - acetone - petrol ether - methanol - aqueous NH3 42:6:5:2:1. Detection by spraying with a cerium sulfate - sodium molybdate solution. Quantification by densitometry at 610 nm.

Microbiol. Res. 163, 161-167 (2008). Test solutions containing 0.25 to 64 µg of norharmane, quinine, and tetracycline (as bases and hydrochloride salts) were applied as 10 mm bands on silica gel plates. After coating the plate with a concentrated suspension of the living cyanobacterial test organism (spraying or dipping), it was kept moist in a TLC chamber at 27 ºC for 1 to 2 days under continuous illumination (25 - 30 µmol photon/m2s). Cytotoxic concentrations of a test compound resulted in an easily recognizable regional decolourisation of the test organism.