J. Liq. Chromatogr. Relat. Technol. 28, 2561-2569 (2005). TLC of cyanocobamides (benzimidazolyl, h-hydroxybenzimidazolyl, and 7-adeninyl cyanocobamides) on silica gel with 1-butanol - 2-propanol - water 10:7:10, and 2-propanol - 28 % ammonium hydroxide - water 7:1:2 in the dark. Detection under visible and UV light.

by high speed countercurrent chromatography. J. Liq. Chromatogr. & Relat. Technol. 30, 135-145 (2007). TLC of pinoresinol diglucoside and liriodendrin on silica gel (impregnated with 1 % carboxymethyl cellulose sodium) with the lower phase of chloroform - methanol - water 65:35:16. Detection by spraying with 10 % ethanolic sulfuric acid.

Whole Plant Powder by HPTLC. Chromatographia 65 (11-12), 767-769 (2006). Description of a simple, precise and accurate HPTLC method for the determination of rutin in the whole plant powder of Amaranthus spinosus Linn, which has been reported to have anti-diabetic, anti-thrombotic, anti-inflammatory and anti-carcinogenic activity. TLC of a methanol extract of the whole plant powder on silica gel with ethyl acetate - formic acid - methanol - water 100:9:11:17. Quantitative determination by densitometric measurement in absorbance mode at 363 nm. Linearity was between 10 and 60 µg/mL.

J. Liq. Chromatogr. Relat. Technol. 28, 1679-1691 (2005). HPTLC of the iridoid gycoside picroside I and picroside II on silica gel with chloroform - methanol 41:9 in a saturated twin-trough chamber. Quantitation by absorbance measurement at 290 nm.

J. Planar Chromatogr. 20, 259-260 (2007). Investigation of the effects of two-component mobile phases (carbon tetrachloride-methanol, chloroform-methanol, dichloromethane-methanol and chlorobenzene-methanol) on the separation of porphyrins. The results were characterized by determination of the Rf values. TLC of five porphyrins (porphin, 5,10,15,20-tetra(4-methoxyphenyl)porphyrin, 5,10,15,20-tetra-(4-pentyloxyphenyl)porphyrin, 5,10,15,20-tetra(4-decyloxyphenyl)porphyrin), and 5,10,15,20-tetra-4-hexadecyloxyphenyl)porphyrin) on RP-18. Optimum separations were obtained by use of 5:5 mixtures.

J. Planar Chromatogr. 20, 165-171 (2007). TLC of 17 DL amino acids derivatized with1-fluoro-2,4-dinitrophenyl-5-L-alaninamide, 1-fluoro-2,4-dinitrophenyl-5-L-phenylalaninamide, or 1-fluoro-2,4-dinitrophenyl-5-L-valinamide on silica gel with phenol - water 3:1 or on RP-18 with mobile phases containing acetonitrile and triethylamine-phosphate buffer (50 mM, pH 5.5) with saturation for 10-15 min.

59th Indian Pharmaceutical congress F-146, 424, (2007). HPTLC of paracetamol, acetofenac and chlorzoxazone on silica gel with toluene - chloroform - methanol - ethyl acetate 6:2:2:1. Densitometric quantification at 225 nm. The hRf values of aceclofenac, paracetamoland chorzoxazole was 22, 42, and 73, respectively. Linearity was between 700-2400, 1000-3200, and 300-1000 ng/zone for aceclofenac, paracetamol and chorzoxazole, respectively. Recovery was between 100.5 and 101.5 % for all compounds.

Chromatographia 66 (1-2), 95-102 (2007). HPTLC of dasatinib in the presence of its degradation products, on silica gel sheets with toluene - chloroform 7:3. Quantification by densitometry at 280 nm. The hRf value of dasatinib was 23 and selectivity regarding matrix was given. Validation of the method as per the ICH guidelines. Dasatinib was subjected to acid–alkali hydrolysis, oxidation, dry heat, wet heat and photodegradation. The drug was susceptible to acid–alkali hydrolysis and oxidation. The drug was found to be stable in neutral, wet heat, dry heat and photo-degradation conditions.