Zur Unterscheidung der Früchte von Illicium verum Hook f. und Illicium anisatum L. Teil 2: Phytochemische Unterscheidungsmerkmale. (Differentiation between the fruits from illicium verum Hook and illicium anisatum L. Part II). Deutsche Apotheker Zeitung 130, 1194-1200 (1990). TLC of anethole, foeniculin, myristicin and safrole on silica with hexane – toluene 1:1. Detection under UV 254 nm or by spraying with phosphomolybdic acid (10% in ethanol) and heating at 120°C.

J. Liquid Chromatogr. 18, 859-872 (1995). Description of different TLC techniques for the quantitative determination of molecular species of the title compounds. Silver ion TLC in both analytical and preparative mode followed by reversed-phase TLC gives results compatible with those obtained with RP-HPLC and Capillary GLC. RP-TLC on dimethyldichlorosilane-impregnated Kieselguhr G with acetone - acetonitrile containing varying proportions of water. Detection by spraying with 50% sulfuric acid in ethanol and heating at 200 °C for 5 min. Quantification by densitometry at 450 nm.

Lebensm. Unters. Forsch. 175, 337-341 (1982). Diterpenoide im Kaffee. I. (Diterpenes in coffee. I. Atractyligenin.) TLC of atractyligenin on silica with chloroform - methanol 85:15. Detection by dipping into a solution of 1 ml anisaldehyde + 2 ml sulfuric acid + 100 ml acetic acid. Densitometry at 546 nm.

Chromatogr. 287, 419- 424 (1984). (Microspectrofluorometric dosage on TLC of monomethyihydrazine of Gyromitra esculenta.) TLC of monomethylhydrazine on cellulose with butanol-ethanol - water 4:1:2. Detection by UV after spraying with 0.5 % p-dimethylaninocinnamaldehyde in ethanol, containing 4 % sulfuric acid and then water.

TLC in pharmacy: chamomile leaf. Deutsche Apotheker Zeitung 131, 2616-2619 (1991). TLC of borneol and bornylacetate on silica with toluene – ethyl acetate 93:7. Detection by spraying with anisaldehyde – sulfuric acid reagent and under UV 254 and 366 nm.

J. Agric. Food Chem. 48, 231-234 (2000). TLC of the unsaponifiables (hydrocarbons, triterpene alcohols, sterols) on silica gel, bandwise applied, with hexane - ethyl acetate 6:1. Detection after spraying with 0.5% Rhodamine 6G solution and observation under UV. After elution and extraction silanation of sterols and triterpene alcohols with BSTFA for GC investigation.

Journal of Natural Remedies 8(1), 61-67 (2008). During pharmacognostic studies on Sphaeranthus indicus (Asteraceae) the sesquiterpenoid 7-OH-eudesmanolide was isolated. HPTLC of the ethyl acetate soluble fraction of aqueous alcoholic Sphaeranthus indicus extracts, on silica gel with n-hexane - diethyl ether 3:7. The plant extract and the marker (7-OH-eudesmanolide) were chromatographed simultaneously. Quantitative determination by absorbance measurement at 213 nm.

J. AOAC Int. 96, 1209-1213 (2013). TLC of thujone (1) and 1,8-cineole (2) in the leaves of Artemisia adamsii essential oil on silica gel with toluene - ethyl acetate 93:7. Detection by dipping into vanillin - sulfuric acid reagent, followed by heating at 90 ºC for 3 min. The hRf values for (1) and (2) were 56 and 45. Bioautography by dipping into S. aureus suspension for 10 s. After drying for 2 min followed by incubation at 37 ºC for 17 h the plates were dipped in an aqueous solution of MTT (3-[4,5-dimethylthiazol-2-yl]-2,5-diphenyltetrazolium bromide 50 mg/80 mL) for 10 s and incubated at 37°C for 2 h. Inhibition zones appeared as pale yellowish zones against blue background.