Asian J. Chem. 19(5), 3621-3636 (2007). TLC of ornidazole and cefixime on silica gel with methanol - water 3:2. Quantitative determination by absorbance measurement at 254 nm. Linearity was between 250 and 2500 µg/mL for ornidazole and 100 and 900 µg/mL for cefixime. The recoveries of drugs by standard addition method were found in the range of 98.0 and 89.4 % for both drugs. The method is suitable for routine quality control.

Chinese J. Hosp. Pharm. (Zhongguo Yaoxue Zazhi) 16, 418-419 (1996). TLC on silica with chloroform - benzene - acetone - methanol 5:5:3:1. Detection under UV 254. Quantification by densitometry at 300, 200 nm, respectively. Detection limits 60, 60, 400 ng, respectively. Precision between 1.78 and 3.21% (within plate) and between 2.75 and 4.05% (inter plate).

J. Planar Chromatogr. 22, 145-155 (2009). TLC of candesartan, eprosartan, telmisartan, losartan, and valsartan on RP-8 and RP-18 with mobile phases comprising 3:7 mixtures of phosphate buffer of different pH (2-8) and one of three modifiers, acetonitrile, methanol, or tetrahydrofuran, in horizontal chambers at ambient temperature. Detection under UV 254 nm. Quantitative determination by absorbance measurement. Separation of the five sartans was also achieved by TLC on RP-18 with dimethyl sulfoxide - phosphate buffer (pH 5.0) 4:1.

Chromatographia 47, 695-700 (1998). TLC on silica gel with chloroform - methanol 9:1. Detection by dipping into isonicotinic acid hydrazide (IAH) reagent for 20 s, and then into chloroform - liquid paraffin 9:1. Quantitation by fluorodensitometry at 366/>460 nm. Detection limit 1 ng.

J. Planar Chromatogr. 21, 251-258 (2008). TLC of tiaprofenic acid, ketoprofen, naproxen, dexibuprofen, flurbiprofen, alminoprofen, and ibuprofen on silica gel with chloroform - acetone - toluene 12:5:2 and chloroform - ethyl acetate 1:1. Quantitative determination by absorbance measurement at 225 nm (for naproxen, dexibuprofen, and ibuprofen) and at 270 nm (for tiaprofenic acid, ketoprofen, flurbiprofen, and alminoprofen).

The transformation of icariin by intestinal flora.) (Chinese). J. Chinese Trad. & Herb. Drugs (Zhongcaoyao) 31 (11), 834-837 (2000). TLC on silica gel with petroleum ether (30-60°C) - acetone - formic acid 35:15:1. Detection by spraying with 2 % AlCl3 in ethanol, and under UV 254 nm. Identification of the metabolites, icaritin and baohuoside I, by ESI/MS

J. AOAC Int. 92, 1064-1067 (2009). HPTLC of rabeprazole sodium and domperidone in tablets on silica gel (prewashed with methanol and dried at 110 °C for 5 min) with toluene - acetone - methanol 9:9:1 in a twin trough chamber saturated with the mobile phase for 5 min. Quantitative determination by absorbance measurement at 285 nm. The hRf value of rapebrazole sodium and domperidone was 53 and 32, respectively. Linearity was between 50 and 800 ng/band for both substances.

J. Planar Chromatogr. 16, 374-376 (2003). HPTLC of mannose and lactulose from urine on amino-modified silica gel with acetonitrile - water 7:3. After drying the plates were heated at 170°C for 20 min. Determination of lactulose by densitometry at 366 nm. Visualization after dipping into paraffin - hexane 1:2, and drying for 5 min at 100°C. The plate was immersed in three detection reagents: 1 L 0.1 mol/L AgNO3 and 200 mL acetone for 2 s, drying in air; 4 g NaOH in 4 mL water and 200 mL methanol for 2 s, drying for 2 min at 100°C; 20 g sodium thiosulfate dissolved in 100 mL water and 100 mL ethanol for 6 s, drying for 2 min at 100°C. Determination of mannitol by densitometry in absorbance mode at 660 nm.