J. Planar Chromatogr. 22, 301-304 (2009). Analytical and preparative TLC of luteolin-7-rutinoside and luteolin-7-neohesperidoside on silica gel with ethyl acetate - formic acid - acetic acid - water 100:11:11:23, on cellulose with 30 % acetic acid, and on polyamide with chloroform - methanol - 2-butanone - acetyl acetone (= pentane-2,4-dione) 9:4:3:1. Detection by spraying with natural products reagent followed by treatment with PEG 4000, or by aniline phthalate.

Chinese J. Pharm. Anal. 28 (4), 608-610 (2008). TLC of hyperoside in the raw extract of Hypericum perforatum on silica gel with petroleum ether (60-90 °C) – ethyl acetate – methanol 1:4:2. Detection under daylight. Quantification by densitometry at 591 nm. Linearity was given between 0.1 and 14.4 µg/spot (r2 = 0.9892), recovery was between 96.4 and 100.1 %.

J. Planar Chromatogr. 23, 225-226 (2010). OPLC of oregano oil components (carvacrol, thymol, and linalool) on silica gel with dichloromethane. Detection under UV 254 nm, by spraying with vanillin-sulfuric acid reagent (0.1 g vanillin, 100 mL ethanol, and 2.2 mL 95-98 % sulfuric acid) and heating at 110 °C for 3 min, and in the BioArena system (the dried developed plates were dipped for 10 s into an aqueous cell suspension of the soil bacteria Bacillus subtilis and incubated for 2 h at 100 % rel. humidity and 30 °C). Visualizion of antimicrobial compounds was performed by immersing the plates for 5 s in an aqueous solution of MTT reagent (80 mg MTT and 100 mg Triton X-100 in 100 mL water). The layers were further incubated and and documented.

J. Tech. & Sci. of Ningxia Agr. & Forest, 5, 38-39 (2010). For liquorice TLC on silica gel with ethyl acetate - glacial acetic acid - formic acid - water 15:1:1:2, detection by spraying with 10 % sulfuric acid in ethanol and heating at 105 ºC. For Rhizoma zingiberis TLC on silica gel with cyclohexane - diethyl ether 1:1, detection by spraying with 10% vanillin in sulfuric acid and heating at 105 ºC, followed by evaluation in daylight.

Acta Chromatographica 22 (3), 491-497 (2010). HPTLC of lupeol (methanolic Soxhlet extract from the bark of Mimosoups elengi) on silica gel with toluene – ethyl acetate – formic acid 12:2:1. The hRf value of lupeol was 64. Evaluation by densitometry at 220 nm. The linearity was in the range of 1–4 µg/band. The precision was 1.06 and 1.03 %RSD, respectively. Recovery was 97.3 %.

Yunan J. of Chinese Trad. Med. & Pharm. 31(10), 58-60 (2010). TLC of extracts of Cishushi suppository: 1) for Panax notoginseng, on silica gel with chloroform – methanol – water 14:6:1, detection by spraying with 10 % sulfuric acid in ethanol and heating at 105 ºC; 2) for Fructus Cnidii, on silica gel with petroleum ether (60-90 °C) – ethyl acetate 7:3, detection under UV 366 nm; 3) for Borneolum Syntheticum, on silica gel with toluene – ethyl acetate 19:1, detection by spraying with 5 % vanillin-sulfuric acid reagent and heating at 105 °C; 4) for Fructus Sophorae, on silica gel with chloroform – methanol – water – formic acid 700:300:50:1, detection by spraying with 1 % AlCl3 in ethanol, heating and evaluation under UV 366 nm.

J. Planar Chromatogr. 24, 248-252 (2011). TLC of MGDG and DGDG on silica gel with chloroform - methanol -10 % acetic acid 40:10:1. Detection by spraying with a 25 % solution of sulfuric acid in methanol, followed by heating at 105 °C for 5 min. Quantitative determination by densitometry at 477 nm. The hRf values were 48 for DGDG and 80 for MGDG. The limit of detection and quantification was 200 and 500 ng/band for DGDG and 500 and 1500 ng/band for MGDG. The linear range was 0.5-5.5 µg/band for DGDG and 1.5-5.5 µg/band for MGDG, respectively. The recovery (n= 9) was 95.7 % for DGDG and 93.5 % for MGDG. The repeatability and intermediate precision of results, as %RSD, was between 1.7-2.7 % for DGDG and 1.7-2.6 % for MGDG.

J. Planar Chromatogr. 24, 57-59 (2011). HPTLC of piperine on silica gel with toluene - ethyl acetate - diethyl ether 6:3:1 in a saturated twin trough chamber. The hRf of piperine was 40. Quantitative determination by densitometry at 337 nm. Linearity was between 15 and 75 ng/zone. LOD and LOQ was 5 and 15 ng/zone, respectively. The recovery was 94.5 %. The instrumental precision, repeatability, intra-day and inter-day precision (%RSD, n = 6) was 0.6 %, 0.8 %, 0.9 and 0.8 %, respectively.