J. Planar Chromatogr. 28, 167-172 (2015). TLC of trans-resveratrol in cosmetic raw materials on RP with methanol - water 3:2. The plate is dried for 3 h. Quantitative determination by fluorescence measurement using a deuterium lamp at 340 nm. The hRF value was 38. The LOD and LOQ were 2 and 6 ng/zone, respectively. The presence of trans-resveratrol in the analyzed samples was additionally confirmed by detection with anisaldehyde reagent.

J. Liq. Chromatogr. Relat. Technol. 39, 308-311 (2016). HPTLC of trans-resveratrol in Physalis peruviana on silica gel with ethyl acetate – cyclohexane – n-butanol 9:9:2. Chemiluminescence was induced by dipping for 1 s into bis(2,4,6-trichlorophenyl)oxalate (TCPO) solution (50 mg TCPO in 36 mL n-butyl acetate, vigorously shaken for 20 min with 0.4 mL 35 % hydrogen peroxyde). After dipping, the_x000D_
wet plate was dried until no light reflection could be seen on the surface. The hRF value for trans-resveratrol was 78. The LOQ was 20 ng/zone.

Rev. Bras. Farmacogn. 27, 162-169 (2017). HPTLC fingerprint of Limonium brasiliense on silica gel with ethyl acetate – anhydrous formic acid – water 18:1:1. Detection by spraying with 1 % methanolic ferric chloride hexahydrate. The hRF values for gallic acid and gallocathechin were 70 and 60, respectively.

J. Planar Chromatogr. 30, 418-422 (2017). HPTLC-DPPH* assay of instant gruels enriched with cranberry fruits on silica gel with acetonitrile – water – chloroform – formic acid 30:2:5:2. Detection by dipping into a freshly prepared 0.1 % methanolic 2,2-diphenyl-1-picrylhydrazyl (DPPH*) solution. The plate was scanned with a flat-bed scanner every minute over an hour. The area of the standard solution of rutin at the concentration of 0.5 mg/mL was adopted as the reference point.

Food Chem. 255, 120-131 (2018). HPTLC of polyphenols (chlorogenic acid and rutin) in the peel, pulp, and the edible part of pepper on silica gel with ethyl acetate – dichloromethane – formic acid – acetic acid – water 100:25:10:10:11. Detection by spraying with Natural Product reagent and anisaldehyde sulfuric acid solution. Qualitative identification under UV 254 and 366 nm.

J. Agric. Food Chem. 34, 477-460 (1986). TLC separation of gingerols, slogaols (zingerone) on silica with hexane - ether 3:7. Detection by UV 254 nm and organoleptically after extraction with methanol.

Chromatographia 27, 297-300, (1989). Study of the effects of acidity of the media on the adsorption of phenol and cresols. Investigation with TLC on silica, silica containing 3% of active carbon and silica containing 6% of active carbon with various solvent systems, using Rf values as a measure of the adsorption content of the solvent mixture on the adsoption of phenol and cresols on the active carbon layer.

by thin-layer chromatography.) (Chinese). Chinese J. Pharm. Anal. (Yaowu Fenxi Zazhi) 11, 228-231 (1991). TLC of anthralin on silica with benzene - cyclohexane - acetic acid 80:100:2. Quantification by densitometry at 349 nm.