Phytochemistry 106, 94-103 (2014). HPTLC of corosolic acid in Lagerstroemia speciosa on silica gel with ethyl acetate - methanol 49:1. Detection by spraying with anisaldehyde reagent. Quantitative determination by absorbance measurement at 580 nm. The hRF value of corosolic acid was 47. Linearity was between 20 and 100 ng/zone. The intermediate precisions were below 2 % (n=3).

Chinese J. Inform. Trad. Chinese Med. 20 (5), 67-69 (2013). Yinao Huoxue Keli granule is a TCM compound for the treatment of hemiplegia, numbness of limbs, deviation of mouth and tongue. For quality control, HPTLC on silica gel (1) for Salvia miltiorrhiza Bunge with chloroform – acetone – formic acid 8:1:1, detection by spraying with 3 % ferric chloride in 2 N hydrochloric acid – water 1:100 and heating at 105 °C until the spots were visible, identification by fingerprint comparison with the standard protocatechuic aldehyde and the standard ingredient drug; (2) for Panax quinquefolius L., ginsenoside Re, Rb1 and pseudoginsenoside F11 with the lower phase of chloroform – ethyl acetate – methanol – water 15:40:22:10 placed at 5-10 °C for 12 h, detection by spraying with 10 % sulfuric acid in ethanol and heating at 105 °C until the spots were visible.

J. Liq. Chromatogr. Relat. Technol. 38, 1392-1406 (2015). HPTLC of Cordyceps sinensis and Ganoderma lucidum on silica gel with ethyl acetate - dichloromethane - formic acid - glacial acetic acid - methanol 10:10:1:1:2. Qualitative identification at UV 254 nm and UV 366 nm. Hyphenation of electronspray ionization/mass spectrometry with HPTLC facilitated fast and convenient profiling of the metabolites in the extracts. For the chemometric analysis, raw and column data matrices were constructed using hRF datasets.

TrAC 66, 146-157 (2015). Review of common analytical techniques and methods for the analysis of adulterants of essential oils. HPTLC methods for the analysis of numerous samples, such as Clary sage, Mint, Neroli, Niaouli and Thyme essential oils are referenced.

J. Planar Chromatogr. 28, 472-475 (2015). HPTLC of 17α-ethinylestradiol (extracted from water samples using a monolithic stir-bar) on RP-18 with methanol - acetonitrile - water 2:2:1. Detection by heating at 110 °C for 10 min followed by dipping into a mixture of sulfuric acid 98 % in water 1:49 for 1 s. After dipping the plate was heated again to 110 °C for 10 min. The hRF value for 17α-ethinylestradiol was 51.

Braz. J. Microbiol. 46, 103-111 (2015). TLC of 2,4,6-trinitrotoluene (1) and two degradation intermediates with nitrite release into the medium by Pseudomonas aeruginosa, 2,4-dinitrotoluene (2) and 4-aminodinitrotoluene (3) on silica gel with ethyl acetate - hexane 2:3. Identification under UV light at 254 nm. The hRF values for (1) to (3) were 83, 67 and 50, respectively.

J. Liq. Chromatogr. Relat. Technol. 38, 1546-1554 (2015). HPTLC of aliskiren (1), amlodipine (2), and hydrochlorothiazide (3) on silica gel with ethyl acetate - methanol - ammonia 375:140:11. Quantitative determination by absorbance measurement at 229 nm. The hRF values for (1) to (3) were 43, 29 and 65, respectively. Linearity was in the range of 1500-5250 ng/zone for (1), 50-175 ng/zone for (2) and 125-432 ng/zone for (3). LOD and LOQ were 133 and 404 ng/zone for (1), 14 and 43 ng/zone for (2) and 12 and 36 ng/zone for (3), respectively. The intermediate precision was below 1.5 % (n=6). Recovery was found in the range of 99-101 %, 99-100 %, and 100-101 % for (1) to (3), respectively.

Food Chem. 214, 162-168 (2017). HPTLC of cinnamic acid (1), ferulic acid (2), caffeic acid (3) and flavonoid-glycosides (4) in the grains of Kodo millet (Papsalum scrobiculatum) on silica gel with ethyl acetate – formic acid – water 30:2:2. Detection by exposure to iodine vapor. The hRF values for (1) to (4) were 52, 15, 7 and 10, respectively.