J. of Natural Products 51, 708-712 (1988). TLC of butyrylmallotochromenes on silica with hexane - ethyl acetate 10:1. Identification under UV 254 nm.

J. Planar Chromatogr. 4, 373-378 (1991). TLC of amphetamine and 77 analogs on silica and RP-18 silica with toluene - acetone 94% ethanol - 25% NH3 45:45:7:3 and methanol - water 37% hydrochloric acid 50:50:1 resp. Detection by spraying with a filtered 0.5% aqueous solution of FBK, dried briefly with a hot-air blower, sprayed lightly with 0.5M sodium hydroxide solution, dried, and sprayed again with FBK. Detection limit 0.1 µg. All amphetamine derivatives could be readily classified, according to the color of the spots, into primary and secondary amines. The combined use of the chromatographic systems and the color reaction generally enabled differentiation of amphetamine derivatives from other drugs and in most cases from each other.

J. Planar Chromatogr. 8, 69-72 (1995). TLC and HPTLC of hepatotoxins in aqueous and algal samples on silica and RP-18 with 13 different mobile phase systems. Scanning densitometry at 196 nm, confirmation by multiwavelength scanning. The method described is a rapid and facile test, which can be performed in small laboratories, for screening water sources or blooms for cyanobacterial toxins in a hygienic setting.

J. Planar Chromatogr. 10, 384-386 (1997). TLC of heroin, opium, procaine hydrochloride, alprazolam, diazepam, lorazepam, nitrazepam, oxazepam, mandrax, phenobarbitone and caffeine on silica with chloroform - ethanol 9:1. After drying visualization by spraying with 1% mercuric chloride - 1% potassium ferricyanide 1:1 followed by heating at 80°C for about 5 min. Blue spots for heroin, opiates and procaine; sensitivity for heroin approx. 1 µg. The main metabolites of heroin in biological samples, monoacetylmorphine and morphine, give also a positive reaction.

Proc. Intern. Symp. on Planar Separations, Planar Chromatography 2001, pp. 309-312. HPTLC of hemp extracts (cannabidiol, cannabinol) and D8THC and D9THC (as standards) on silica gel with ether - hexane 1:4 for normal HPTLC and two gradients (dichloromethane, dichloromethane/hexane 50/50, hexane; 25 steps or diethyl ether, diethyl ether/hexane 50/50, hexane in 20 steps) as mobile phases. Visualization by spraying with Fast blue B reagent (0.5 p. 100 in methanol). The AMD technique gives more information about the composition of different samples of Indian Hemp and opens possibilities to determine the geographic and operation mode of preparation of different samples.

J. Planar Chromatogr. 29, 474-476 (2016). HPTLC of methamphetamine in Ya-Ba tablets on silica gel with methanol ‒ ammonium 200:3. Quantitative determination by absorbance measurement at 259 nm. The hRF value was 35. Linearity was between 600 and 3000 μg/zone. The intermediate precision was 11.2 % (n=3). The LOD and LOQ were 153 and 463 μg/zone, respectively. Average recovery was 102.3 %.

Forensic Sci. Intern. 35, 141-144 (1987). TLC of brallobarbital and secobarbital on silica with chloroform - acetone 90:10, chloroform - acetone - NH3 50:50:1 and methanol - NH3 100:1.5.

J. Planar Chromatogr. 5, 458-462 (1992). TLC of the contamination of copolymers with carbohydrates, their derivatives, with furfural and maleic acids on silica with propanol - ethyl acetate - water 7:2:1; of contamination with terpenes and dioxane derivatives on aluminium oxide with benzene - hexane - ethanol 25:25:1 or on silica with cyclohexane - toluene - MEK 40:5:4. TLC of copolymers on RP-18 silica with methanol - water 5:1. Visualization with 7 different dyeing reagents. This TLC method is useful for checking the purity of the maleic anhydride copolymers either during synthesis of prior to their medical application.