J. AOAC Int. 90, 113-127 (2007). TLC of bisacodyl [4,4’-(2-pyridylmethylene)-bisphenol diacetate], monoacetyl bisacodyl and desacetyl bisacodyl on silica gel with chloroform - acetone 9:1. Quantitative absorbance measurement at 223 nm. Concentration range for bisacodyl was 0.2 - 1.4 µg/band, mean recovery was 100.4 +/- 1.9 %.

J. Liq. Chromatogr. & Relat. Technol. 30, 1385-1400 (2007). TLC of alpha-tocopherol acetate, alpha-tocopherol, cholecalciferol, estradiol, testosterone, and hydrocortisone on silica gel, silica gel and kieselguhr, and aluminium oxide after prewashing with methanol; TLC of lipophilic vitamins on silica gel with toluene, and on RP-18 with methanol both with chamber saturation. Densitometric measurement at UV 254 nm. The resulting densitograms of the compounds studied indicate that applied sorbents have an influence on the wavelength of the obtained fundamental absorption band and the additional absorption bands, as well as on their intensity values.

J. Planar Chromatogr. 20, 53-56 (2007). HPTLC of flavonoids (quercetin glucuronide, hyperoside, isoquercitrin, quercetin galloyl galactoside, quercitrin) on silica gel with ethyl acetate - formic acid - water 136:5:6 in a horizontal chamber. Densitometric quantitfication of flavonoids at 350 nm.

J. Planar Chromatogr. 20, 57-60 (2007). TLC of 5-methylcytosine, tryptamine, melatonin, tryptophan, indole-3-acetic acid, and indole on silica gel with 1-butanol - glacial acetic acid - water 12:3:5 and isopropanol - 25 % ammonia - water 8:1:1. Densitometry at 280 nm.

59th Indian Pharmaceutical congress C-299, 296, (2007). The gastroprotective drug Gastse was prepared by mixing standardized alcoholic extracts of Capsicum annum, Chelidonium majus, Strychnos nux vomica, and Arsenicum album. HPTLC of Gastse on silica gel with n-hexane - ethyl acatate 52:6. Evaluation at UV 254 nm and 366 nm. Densitometric determination at 200 nm and 400 nm.

59th Indian Pharmaceutical Congress F-83, 410, (2007). HPTLC of rabeprazole sodium and domperidone on silica gel with toluene - acetone - methanol 9:9:1. The hRf value of domperidone was 32 and of rabeprazole sodium 53. Densitometry at 285 nm. Lienarity was between 50 and 800 ng/zone for both compounds. The method was found suitable for routine analysis of formulations.

59th Indian Pharmaceutical Congress C-220, 277, (2007). HPTLC of gallic acid in fruits of Emblica officinalis, on silica gel with touene - ethyl acetate - acetic acid - formic acid 4:9:4:3. Densitometry at 277 nm for quantitative evaluation. The method was linear in the range of 10 and 1000 ng/mL, with an average recovery of 101.4 %. The method was found suitable for routine quality check-up of Emblica officinalis.

59th Indian Pharmaceutical Congress C-17, 228 (2007). HPTLC of curcumin, charantin, and swetiamarin in polyherbal formulations on silica gel with benzene - methanol 4:1 for charantin, chloroform - methanol - formic acid 74:4:1 for curcumin, and ethyl acetate - methanol - water 77:15:5 for swetiamarin. Densitometry at 536 nm for charantin, 425 nm for curcumin, and 238 nm for swetiamarin. The hRf values were 33, 89, and 54 for charantin, curcumin, and swertiamarin respectively.