J. AOAC Int. 90, 142-146 (2007). HPTLC of pantoprazole [5-(difluoromethoxy)-2-[(3,4-dimethoxy-2-pyridyl)methyl-sulfinyl]1H-benzimidazole] and domperidone (5-chloro-1-[1-[3-(2,3-dihydro-2-oxo-1H-benzimidazol-1-yl)propyl]-4-piperidinyl]-1,3-dihydro-2H-benzimidazol-2-one) on silica gel with ethyl acetate - methanol 3:2 in a twin-trough chamber saturated for 30 min. Quantitative determination by absorbance measurement at 287 over the concentration range of 80 - 240 and 60 -180 ng/spot with mean recovery of 98.4 +/- 0.7 % for pantoprazole, and 98.8 +/- 0.7 % for domperidone.

J. Liq. Chromatogr. Relat. Technol. 28, 313-324 (2005). HPTLC of citalopram (1-[3-(dimethylamino)propyl]-1-(4-fluorophenyl)-1,3-dihydro-5-isobenzofurancarbonitrile) and moclobemide (as standard) on silica gel with benzene - acetone - ethanol - 25 % ammonia 9:8:2:1. Quantitative determination by densitometry at 226 nm and by video densitometry at UV 254 nm.

J. Chromatogr. A 1164 (1-2), 298-305 (2007). TLC using staining reagents is fast, versatile and sometimes the only viable method method for analyzing organic compounds without chromophores. Investigation of quantitative TLC using staining reagents in combination with modern image analysis software showed that it is possible to get reliable measurements, suitable for high-throughput screening or physical organic investigations. Illustration of the range of detection and the errors for the different parts of the process, which are largely due to the staining process but can be diminished by measuring ratios of compounds.

Chromatographia 66 (11-12), 605-608 (2007). HPTLC of both isomers of cefpodoxime proxetil on silica gel plate with toluene - acetonitrile 3:2. Quantification by densitometry at 234 nm. The limit of detection and quantification was 150 and 400 ng/zone, respectively.

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. Pharm. Sci. 69(4), 594 (2007). HPTLC of nebivolol HCl in tablet dosage form, on silica gel with ethyl acetate - toluene - methanol - ammonia 10:60:20:1. Quantitative evaluation by densitometry at 280 nm. The hRf value was 33. Linearity was in the range of 100 - 600 ng/mL. Limit of detection and quantification was 30 and 100 ng/zone, respectively. The method was compared with an RP-HPLC method in respect of different analytical parameters. The RP-HPLC and the HPTLC method were found comparable, but the HPTLC method was more sensitive.

59th Indian Pharmaceutical congress F-8, 397, (2007). HPTLC of atomoxetine on silica gel with acetonitrile - methanol - toluene 2:4:1. Quantification by densitometry at 215 nm. The method was linear in the range of 100 and 310 ng/mol. Mean recovery was 101.3 %.

J. Chromatogr. A 1188 (2), 295-300 (2008). Determination of food dyes (tartrazine, azorubine and sunset yellow) in different products by HPTLC combined with image processing of scanned chromatograms, on 3-aminopropyl modified silica gel with isopropanol - diethyl ether - ammonia 2:2:1. Quantification by using digital processing of images with special-purpose software. The limit of detection was between 5 and 9 ng/spot and the limit of quantification was between 10 and 18 ng/spot. Recovery was between 96.4 and 102.7 %.