Indian Drugs 43 (12), 989-982 (2006). HPTLC of lupeol in a methanolic extract of powdered Vernonia cinerea L. on silica gel with dichloromethane - toluene - acetone - methanol 30:50:5:3. Detection by spraying with anisaldehyde reagent. Quantitative determination by absorbance measurement at 581 nm. The concentration of lupeol in Vernonia cinerea L. was found to be 2.01 µg. The method was validated and can be used for routine quality control of Vernonia cinerea L. including quantitation of lupeol.

J. Planar Chromatogr. 20, 429-435 (2007). HPTLC of 3 phenolic acids (caffeic acid, p-coumaric acid, isoferulic acid) and 4 flavonoids (pinocembrin, pinocembrin-7-methyl ether, chrysin, tectochrysin) on silica gel with chloroform - methanol - formic acid 88:7:5 with chamber saturation. Detection by spraying with 1 % ethanolic aluminium chloride solution. Quantification by scanning densitometry in absorbance mode.

J. Planar Chromatogr. 20, 131-133 (2007). HPTLC of camptothecin (4-ethyl-4-hydroxy-1H-pyrano[3’,4’:6,7]indolizino[1,2b]quinoline-3,14(4H,12H)dione) on silica gel with toluene - acetonitrile - glacial acetic acid 65:35:1. Detection and quantitation were performed by densitometric scanning in fluorescence mode at 370 nm.

Indian Drugs 44(10), 734 (2007). HPTLC of valdecoxib on silica gel with toluene - ethyl acetate 1:1. Quantitative evaluation by densitometry at 262 nm. Valdecoxib was well separated from rofecoxib. Linearity was between 800 and 1000 ng/zone. Recovery was 98.9 %.

59th Indian Pharmaceutical congress F-220, 442, (2007). HPTLC of 6-gingerol in herbal extracts on silica gel with n-hexane - ethyl acetate - ammonia 14:5:1 in a chamber saturated for 45 min. Densitometric evaluation at 254nm. The hRf value of 6-gingerol was 52. The method was linear in the range of 100 - 1200 ng/zone.

J. Planar Chromatogr. 20, 463-475 (2007). TLC of chlorpromazine hydrochloride, trifluoperazine dihydrochloride, promazine hydrochloride, and doxepin hydrochloride on silica gel with 1-butanol - aqueous ammonia solution 5:1 or cyclohexane - acetone - diethylamine 8:1:1 after saturation with mobile phase vapor. Detection by inspection under UV light at 254 nm. Scanning densitometry was performed at 254 nm and at the wavelengths of maximum absorbance of the substances.

Indian J. Pharma. Sci. 69(4), 571 (2007). HPTLC of linezolid on silica gel with methanol - benzene 1:4. Densitometric evaluation at 258 nm. The hRf value was 45. Linearity was between 200 and 1400 ng/zone. Limit of detection and quantification was 17 and 51 ng/zone, respectively.

CBS 97, 12-15 (2006). HPTLC of flavonoids from green tea (Camellia sinensis) on silica gel in a saturated twin-trough chamber with ethyl formate - toluene - formic acid - water 60:3:8:6. Detection by dipping the hot plate (heated at 100 °C for 2 min) into natural products reagent, followed by drying, dipping into polyethylene glycol 400 (10 g in 200 mL dichloromethane), and drying. Evaluation under UV 366 nm. With this method the geographical origin of the material can be determined. Toluene - acetone - formic acid 9:9:2 allows the discrimination of green from black and other speciality teas, based on the polyphenol pattern. Detection by dipping the hot plate into a solution of Fast Blue Salt B. Evaluation under white light. For investigation of the alkaloid profile ethyl acetate - methanol - water 20:2.7:2 and evaluation under UV 254 nm is used. The amino acid profile is analyzed by using 1-butanol - acetone - acetic acid - water 7:7:2:4. Detection by dipping in ninhydrin reagent, followed by heating at 110 °C for 3 min. Evaluation under white light.