Pharmazie 62, 226-230 (2007). TLC of two metabolites of the sesquiterpene lactone parthenin on RP-18 and silica gel with dichloromethane - methanol 19:1. Detection by spraying with vanillin-sulfuric acid followed by heating. Also TLC method for detection of hydroperoxy radical: the developed chromatogram was air dried, sprayed with a freshly prepared spray reagent (50 mL of 1 % ethanolic solution of ferrous ammonium sulfate were mixed with 5 mL of 1 M sulfuric acid, and added to 5 mL ethanolic solution of ammonium thiocyanate). A dark red coloured zone was considered as a positive result. Ascaridol and hydrogen peroxide were used as positive controls.

J. Liq. Chromatogr. Relat. Technol. 30, 2617-2628 (2007). TLC and HPTLC of monoterpenes, e. g. menthol and menthone from peppermint, on silica gel with toluene - ethyl acetate 3:7, 4:6, ... , 9:1, and 10:0 in a horizontal chamber. Detection with methanolic vanillin - sulfuric acid reagent and under UV 254 nm. Flavonoids from hawthorn, Passiflora incarnata, hop, cacao, as well as tea were also determined by TLC and OP TLC.

J. Planar Chromatogr. 26, 93-95 (2013). TLC of piperitone in the aerial parts of Cymbopogon proximus on silica gel with hexane - ethyl acetate 4:1. Quantitative determination by absorbance measurement at 245 nm. The hRf of piperitone was 40. Linearity was in the range of 250-1000 ng/zone. Recovery (by standard addition) was between 98.8 and 99.1 %. Intermediate/interday/intra-day precision was below 2 % (n=3).

J. Chromatogr. A 1533, 213-220 (2018). HPTLC coupled with effect-directed analysis for non-targeted screening of sunflower leaf extract for components exhibiting antioxidant, antibacterial and/or cholinesterase enzyme inhibitory effects. Characterization of the active compounds by HPTLC-electrospray ionization-high resolution mass spectrometry (ESI-HRMS) and HPTLC-Direct Analysis in Real Time (DART)-MS/MS. Identification of the two bioactive diterpenes, (-)-kaur-16-en-19-oic acid and 15-α-angeloyloxy-ent-kaur-16-en-19-oic acid, by NMR spectroscopy after targeted isolation via preparative normal phase flash chromatography and semi-preparative reversed phase HPLC.

Journal of Natural Products 50, 49-54 (1987). TLC of quadrone, quadrone-4-ethylene ketal, 8a-hydroxyquadrone, 8a-hydroxyquadrone-4-ethylene ketal on silica with chloroform - acetone - benzene - formic acid 95:5:5:1 and chloroform - ethyl acetate 3:1. Visualization by spraying with p-anisaldehyde - acetic acid - sulfuric acid 1:120:1 and heating.

J. of Natural Products 51, 513-516 (1988). TLC of diterpenes (luteolin-8,3'-O-dimethyl ether, 3-methoxy-4-isopropyl benzaldehyde) on silica with ether or ether - petrol ether 1:9.

Biochemie und Physiologie der Pflanzen 184, 249-258 (1989). TLC of gibberellins (GA3,GA4 and GA8) on silica with chloroform - ethyl acetate - acetic acid 5:4:1.

macraei. Biochemical Systematics and Ecology 19, 53-57 (1991). TLC of acetylenic compound, di-, tri- and sesquiterpenes, chromone and flavonoids on silica with petrol ether - ethyl acetate 9:1, 3:2 and 2:3 or with chloroform - methanol 19:1 and 9:1. Compounds identified by spectroscopic methods (UV, IR, NMR, MS) and/or cochromatography with authentic samples.