J. Liq. Chromatogr. Relat. Tech. 38, 381-389 (2015). Review of the materials, techniques and instruments for the detection and quantification of radiolabeled compounds by planar radiochromatography. Special reference is made to sample preparation, stationary phases (including instant TLCD sheets), initial zone application, mobile phases, stationary phase development, and zone detection and quantification.

Polimeros. 26, 74-80 (2016). TLC of additives such as paraffinic oil (1), stearic acid (2), 2-mercaptobenzothiazole (3), and tetramethylthiuram disulfide (4) in rubber compositions of ethylene-propylene-diene rubber (EPDM) on silica gel with hexane – diethyl ether – acetic acid 14:6:1. After developing, the plate was heated at 105 ºC for 30 min and then cooled at room temperature. Detection by spraying with 1 % solution of 2,6-di-chloro-para-chloro benzoquinine imine in ethanol. The hRF values for (1) to (4) were 10, 65, 37 and 14, respectively.

J. Liq. Chromatogr. Relat. Technol. 41, 373-376 (2018). HPTLC of 22 amino acids in the cultures of control and starved Biomphalaria glabrata snails on cellulose plates with 2-butanol – pyridine – acetic acid – water 39:34:10:26. Detection by spraying with 2 % ninhydrin solution in n-butanol – acetone 1:1, followed by heating at 110 ºC for 10 min. Quantitative determination by absorbance measurement at 610 nm. Samples were also analyzed on RP-18 with water – methanol 3:7 with addition of 100 mM formic acid in the bonded phase normal phase mode and water – methanol 7:3 with the addition of 100 mM trifluoroacetic acid in the bonded phase reversed phase mode. Although better separation results were obtained with the cellulose plates, an excellent separation of the pair Ile and Leu with the RP-18 W was noted.

Biochemical Systematics and Ecology 15, 595-606 (1987). Two-dimensional TLC of 3a,19-dihydroxyspongia-13(16),14-dien-2-one, 3a,17,19-trihydroxyspongia-13(16),14-dien-2-one on silica with dichloromethane - ethyl acetate 4:1 (first direction) and 1:1 (second direction). Detection by spraying with vanillin-sulfuric acid reagent and heating.

J. Planar Chromatogr. 2, 119-127 (1989). Review on the use of calcium sulfate and mixtures of calcium sulfate with other inorganic adsorbents as separation layers in TLC. Analytes include inorganic ions, carboxylic acids, fatty acids, herbicides, lipids and related compounds.

J. Planar Chromatogr. 3, 6-9 (1990). HPTLC separation of 24 pesticides with the AMD-technique. Two 20-step elution gradients based on dichloromethane and on tert butyl methyl ether were tested. Using HPTLC silica gel layers of 100 µm instead of 200 µm and reducing the running distance increments from 3 mm to 1 mm, both sensitivity and speed of the procedure were increased. Scanning by adsorbance at 200, 220, 240, 260, 280 and 300 nm (multiwavelength).

(Hungarian). Gyógysterészet 37, 161-163 (1993). TLC of allantoin on cellulose with butanol - acetic acid - water 3:1:1. Visualization by spraying with p-dimethylaminobenzaldehyde and heating at 100 °C for 10 min.

J. Chromatogr. 688, 383-389 (1994). HPTLC of atrazine and simazine herbicides on silica with nitromethane - tetrachloromethane 1:1. Detection limits 30 and 60 ng/L for atrazine and simazine, respectively, at the 80 - 400 ng/L fortification level in the surface water. R.S.D. < 12%. Overall recoveries, 58-93%. The method is sufficiently selective and sensitive in screening of the compounds below the maximum residue limits of the European Community.