J. Chinese Trad. Patent Med. (Zhongchengyao) 20 (2), 15-16 (1998). TLC of essential oils on silica gel with hexane - ethyl acetate 17:3. Detection by spraying with 5% vanillin-sulfuric acid reagent and heating at 105°C for 5 min. Comparison of the constituents by finger print techniques.

J. Chromatogr. A 1381, 229-238 (2015). TLC screening and TLC-MS2 analysis of triterpenoids and phytosterols on (A) RP-18 with ethyl acetate - acetonitrile 3:2; (B) RP-18 with with acetone - acetonitrile 5:1; (C) silica gel with n-hexane - ethyl acetate 5:1. Detection of (A), (B) and (C) by dipping with a methanolic solution of anisaldehyde reagent, followed by heating at 110 °C for 30 s. Qualitative identification under white light and at UV 366 nm. The TLC-MS Interface was used for the elution of compounds from the plates into a LCQ ion trap system equiped with atmospheric pressure chemical ionization in positive mode. Acetonitrile was used as an eluent at a flow rate of 0.3 mL/min. This approach of combination TLC and MS enabled positive assignment of different triterpenoids and phytosterols.

nauk. SSSR, Serija chimicheskaja 1557-1561 (1983). (Russian). (Synthesis of 2Z, 6Z, 1OZ, 14E, 18E-farnesylfarnesol). TLC of the title compound on silica with a) ether, b) ether - hexane 1:1.

J. Chromatogr. 452, 377-398 (1988). Evaluation of the chromatographic properties of about 100 sterols, select steroids of plant origin and triterpenoids by TLC or argentation TLC and other techniques. Visualization of TL Chromatograms by spraying with 50% methanolic sulfuric acid and heating at 60°C. Discussion of the utility of each methodology.

Phytochemistry 47, 1583-1600 (1998). Isolation of numerous new diterpenes by prep. TLC on silica gel with dichloromethane - toluene - methyl-tert-butyl ether (MTB) 9:9:2, 7:7:6, 2:2:1, toluene - dichloromethane - MTB 4:4:1 and petroleum ether - MTB 3:7.

Analytical Chemistry - An Indian Journal 8(1), 82-86 (2009). An HPTLC method is reported for estimation of beta-sitosterol in flowers of Woodfordia fruticosa (Lythraceae) and its polyherbal formulation. HPTLC on silica gel with toluene - ethyl acetate - methanol - glacial acetic acid 80:10:5:3. Methanolic extracts of the sample were used for chromatographic separation. Derivatization with Liebermann-Burchard reagent, densitometric quantification at 366 nm. The linearity range was 100-700 ng/band. The flowers of the plant contained 0.18 µg/mg beta-sitosterol and the tablet herbal formulation contained 0.15 µg/mg.

J. Chromatogr. A 1525, 173-280 (2017). Presentation of a straightforward, selective and sensitive screening method for the determination of 16-O-methylcafestol (16-OMC) in roasted coffee, the characteristic diterpene exclusively present in Coffea canephora which is an excellent marker for Coffea canephora admixtures to Coffea arabica. HPTLC with fluorescence detection (HPTLC–FLD), using sudan IV as internal standard and a direct saponification with 10 % ethanolic potassium hydroxide solution, followed by solid-supported liquid extraction with petroleum ether. Selective derivatization of 16-OMC with 2-naphthoyl chloride and analysis by HPTLC–FLD on silica gel with cyclohexane – t-butyl methyl ether – formic acid 43:7:1. Quantitative determination of the enhanced fluorescence at 244/>320 nm. The LOD and LOQ was 5 and 14 mg/kg of 16-OMC in coffee, which allowed for the determination of Coffea canephora admixtures to Coffea arabica below 1 %. The recovery for blends of Coffea arabica with Coffea canephora was close to 100 %._x000D_

Detection by spraying with sulfuric acid - vanillin or sulfuric acid - anis aldehyde. Characterization by CC.