Anal. Bioanal. Chem. 412, 2237-2249 (2020). HPTLC of sphingomyelin (1), phosphatidylcholine (2), and triacylglycerol (3) fractions from preadipocytes and adipocytes on silica gel with chloroform - ethanol - water - triethylamine 30:35:7:35 for (1) and (2) and hexane - diethyl ether - acetic acid 80:20:1 for (3). Detection by dipping into primuline (dissolved in acetone - water 4:1) and under UV light at 366 nm. Lipid fractions were further analyzed by electrospray ionization-ion trap mass spectrometry.

J. Liq. Chromatogr. Relat. Technol. 44, 87-94 (2021). HPTLC fingerprinting of Selinum
tenuifolium on silica gel with toluene - ethyl acetate - formic acid 13:11:2. Detection under UV light at 254 nm and 366 nm. The hRF values for gallic acid and ferulic acid were 36 and 58, respectively. 

J. Planar Chromatogr. 34, 113-120 (2021). HPTLC of thymol (1), carvacrol (2), α-terpineol (3), t-anethole (4), safrole (5), p-anisaldehyde (6), fenchone (7), quercetin (8), kaempferol (9) and quercitrin (10) in common thyme essential oil, star anise essential oil and acerola fruit extract on silica gel with toluene - ethyl acetate 17:3 and methanol - water 1:1. The hRF values for (1) to (10) were 24, 22, 3, 79, 83, 21, 46, 53, 27, 18 and 44, respectively. The OPLC methods were  time- and solvent-saving in comparison with conventional TLC.

J. Planar Chromatogr. 34, 183-186 (2021). HPTLC of carbosulfan in viscera sample (pieces of stomach, small and large intestine with contents, liver, spleen, kidney, and lungs) on silica gel with hexane - acetone 4:1. Detection by spraying with reagent A (10 % sodium hydroxide), then 10 min later with reagent B (2 g sodium nitrite added to 2 g copper acetate in 100 mL distilled water), followed by heating at 100 °C for 15 min. The hRF value for carbosulfan was 48. The color visibility of pink-colored zones was up to 72 h.

J. Planar Chromatogr. 34, 105-111 (2021). HPTLC of dansyl derivatives of amino acids on silica gel (1) and RP-18 (2) with acetonitrile in the concentration range from 0 to 40 % in water - formic acid solution for (1) and acetonitrile in the concentration range from 10 to 85 % in water - formic acid solution for (2). Pressurized planar electrochromatography (PPEC) under the same conditions with polarization voltage 0.500 kV and separation time of 15 min. Detection under UV light. The separation selectivity is different between HPTLC and PPEC due to the electrophoretic effect in PPEC.

J. Planar Chromatogr. 34, 89-94 (2021). HPTLC of fresh Kakadu plum fruits (Terminalia ferdinandiana) on silica gel with toluene - ethyl acetate - formic acid 5:3:2. Detection by dipping into natural product reagent (1.0 g of 2-aminoethyl diphenylborinate in 100 mL methanol), followed by heating at 100 ºC for 3 min. Quantitative determination by absorbance measurement at 366 nm. The HPTLC fingerprint allowed to differentiate between different sources of fruit.

J. Planar Chromatogr. 34, 5-29 (2021). Comprehensive review of the use of green solvents between 2005 and 2019, including ionic liquids, surfactants, deep eutectic solvents, bio-based solvents (alcohols, esters, ethers and industrial bio-degradable solvents) as mobile phase or additives in TLC.

Planta Med. 85(2), 154-159 (2019). Two new cycloartane triterpene heterosides (cimiheraclein F and a shengmanol derivative) isolated from Actaea heracleifolia aerial parts (Ranunculaceae) were submitted to acid hydrolysis (HCl 0.4 M in methanol 60 %, 90°C, 2 h). The glycone moieties were purified and developed on TLC silica gel with ethyl acetate – chloroform – methanol – water 3:2:2:1. Detection after spraying with sulfuric acid 10 % in water and heating. The glycones were identified in both cases as L-arabinopyranose by comparison of the RF values (and of specific optical rotation) to a standard.