Shanxi J. of Trad. Chinese Med. 33 (12), 1666-1667 (2012). It is highly debatable whether Radix Aconiti Lateralis Preparata is compatible with Trichosanthes kirilowii Maxim when both needed in processing single formulations. A method is presented to investigate the change of the chemical composition of the extracts obtained by separate and mixed decoction of two kinds of drugs. Preparation of the analytes by decocting, separately, of Radix Aconiti Lateralis Preparata (A), Trichosanthes kirilowii Maxim (B) and combined decoction of the two (C), then extracting, separately, with petroleum ether (30—60 °C) producing extracts A1, B1, C1 and with n-butanol producing extracts A2, B2, C2. TLC on silica gel with the upper phase of n-butanol – ethyl acetate – water 4:1:5, detection 1) under UV 366 nm; 2) by spraying with 10 % sulfuric acid in ethanol and viewing under UV 366 nm. By investigation of 5 batches of the drug sample, significant difference was found between the analytes from single drug decoction and those from mixed drug decoction. The unknown ingredients found in the mixed decoction will be further characterized and analyzed. This study provides an experimental base for exploration of the mechanism of the interaction among the ingredients released from the two drugs.

Food Chem. 221, 1232-1244 (2017). Review of novel analytical methods for the detection of milk adulterants, including the use of RP-TLC for the determination of vegetable oils as adulterant of fat content. In this methodology, vegetable oil content was quantified by monitoring the structure of sterols by using β-sitosterol as a marker.

Food Control. 97, 1-14 (2019). Review of the occurrence and contamination levels of foodborne mycotoxins in Turkey, including analyses performed on food groups and feeds in Turkey using TLC and HPTLC for the detection of aflatoxins (AF) in fruits and vegetables, AFM1 in dairy products and AFB1 in herbs and various nuts.

J.A.O.A.C. 68, 242-246 (1985). Review of TLC methods for mycotoxins with numerous references.

Quantitative HPTLC of silybin - a comparison to quantitative HPLC. GIT Suppl. Chromatographie 3, 4-11 (1987). With the aid of an optimized HPTLC procedure silybin was quantitatively determined after extraction with methanol in the drug cardui mariae, besides Silydianin, Silydristin and Taxifolin. The extraction procedure was simplified and optimized with a view to systematic errors. The statistical comparison of the results with those established by HPLC, shows the equivalence of both analytical methods. Under the aspect of the expenditures (time, personnel, appliances) as well as total operating costs HPTLC turnes to be a most appropriate method for this routine analysis.

J. Liquid Chrom. 10, 3585-3593 (1987). HPTLC on silica with toluene - methanol 97:3. Detection by spraying with 5-10% solution of NaOH or KOH and under UV 360 nm. Densitometry by absorbance and fluorescence. Determination limit: 5 ng for fluorescence and 500 ng for absorbance.

J.A.O.A.C. 72, 22-26 (1989). TLC separation of mycotoxins on silica with toluene - ethyl acetate - formic acid 60:40:0.5, acetone - chloroform 1:9 and 5 other mixtures. Semi-quantitative evaluation after spraying with AlCl3 solution (20 g AlCl3•6 H2O in 100 mL 75% ethanol) and comparison of spot intensities under UV 366 nm. Detection limits: 2 µg/kg (aflatoxins), 5 µg/kg (ochrotoxin A), 15 µg/kg (sterigmatocystine), 55 µg/kg (zearalenone).

J. Liquid Chromatogr. 13, 3941-3947 (1990). TLC of pentachlorophenol on silica with hexane - ace-tone - methanol - acetic acid 35:10:5:0.1. Detection by dipping into a solution of 20% aqueous AgNO3 - acetone - deionized water - NH3 8:20:20:12 and exposure to UV 254 nm. Quantification by densitometry. Detection limit, 0.5 ppm in tallow.