J. Liq. Chromatogr. Relat. Technol. 31, 1458-1464 (2008). TLC of porphyrins and four alkoxy porphyrin derivatives on RP-18 with dichloromethane - methanol 3:2 saturated for 30 min. Detection by visual evaluation under white light.

60th Indian Pharmaceutical Congress PA-202 (2008). HPTLC of 6-gingerol and 3-acetyl-11-keto-beta-boswellic acid on silica gel with n-hexane - ethyl actate 7:3 in a chamber saturated at ambient temperature. Quantitative determination by absorbance measurement at 254 nm. The hRf values were 48 and 58 for 3-acetyl-11-keto-beta-boswellic acid and 6-gingerol respectively. The recovery was 98.7-100.8 % for both compounds. The chromatographic conditions were suitable for routine analysis.

J. Liq. Chromatogr. Relat. Technol. 31, 611-618 (2008). TLC of eleven new bioactive 10-substituted 2,7-diazaphenothiazines on RP-18 with acetone and aqueous TRIS (tris-(hydroxymethyl)aminomethane) buffer pH 7.4 in a saturated chamber. The concentration of acetone in the mobile phase ranged from 50-85 % in 5 % increments. Evaluation under UV 254 nm and 366 nm. The method was used for the experimental determination of lipophilicity.

60th Indian Phamaceutical Congress PA-196, (2008). HPTLC of trandolapril on silica gel with chloroform - methanol - acetic acid 16:3:1 in a saturated chamber. Quantitative determination by absorbance measurement at 210 nm. Linearity was in the range of 200-1000 ng/spot. The method was suitable for routine quality control of drug in tablet dosage form.

J. Planar Chromatogr. 21, 387-390 (2008). TLC of prostaglandin PGE2 and PGF2a on silica gel and RP-18 in a saturated chamber with methanol - dichloromethane 1:9 and 100 % acetonitrile, respectively. Detection by spraying with phosphomolybdic acid (10 % in methanol) and heating at temperatures ranging from 80 to 100 °C (for silica gel) and below 80 °C (for RP-18). Densitometric evaluation; chromatographic spot quantification, however, was performed manually using the peak height above baseline method.

J. Planar Chromatogr. 22, 83-88 (2009). TLC of isoniazid, pyrazinamide, ethambutol, and aminosalicylic acid on RP-18 in a horizontal chamber at 20 °C with acetonitrile - water 3:7. The mobile phase was modified by adding copper(II) chloride to the mixture at a constant concentration of 0.05 M. Detection under UV light at 254 nm. Quantitative determination by absorbance measurement in the range 200 - 700 nm with a TLC scanner equipped with a diode-array detector.

Abstract No. 9145, IHCB (2009). Terminalia chebula (an important constituent of Triphala, a popular ayurvedic formulation) was standardized for gallic acid content by HPTLC on silica gel with toluene - ethyl acetate - formic acid 10:10:3. The hRf value of gallic acid was 45. Quantitative determination by absorbance measurement at 254 nm. The method was linear in the range of 150-550 ng/spot. Hydroalcoholic extracts of the fruit pulp contained 10.5 mg/g gallic acid.

J. Chinese Trad. Patent Med. 30 (10), 1475-1478 (2008). TLC of Baijian Cichuang suppository extracts on silica gel with 1) n-butanol - glacial acetic acid - water 7:1:2; 2) chloroform - ethyl acetate - formic acid 6:4:1; 3) petroleum ether (60-90 ºC) - diethyl ether - toluene 14:4:3. Detection 1) under UV 365 nm; 2) by spraying with 5 % vanillin in sulfuric acid, followed by heating. Identification by comparison with the standard berberine chloride and other standards of the component drugs.