J. Chinese Trad. Patent Med. (Zhongchengyao) 27 (7), 859-861 (2005). TLC of Ganlu Xiaodu capsules on silica gel with chloroform - methanol - water 185:15:2. Detection under UV 254 nm. Identification by fingerprint techniques and by HPLC. Quantification of scutellarin by HPLC.

et Zucc by thin-layer chromatography) (Chinese). J. Chinese Trad. Patent Med. (Zhongchengyao) 27 (5), 605-607 (2005). TLC of resveratrol on silica gel with petroleum ether (30 ºC-90 ºC) - ethyl acetate - methanol - glacial acetic acid 200:50:35:1. Detection under UV light. Identification by comparison with the standard. Quantification by densitometry at 293 nm. Validation of the method by investigation of its linearity range (0.5 µg - 5.0 µg, r = 0.999); precision (RSD = 0.98 %, n = 5); its reproducibility of five time assay towards the same sample (RSD = 2.52 %); standard addition recovery (101.6 %, RSD = 0.26 %, n = 5). The results for three real life samples are given. Discussion of the application of the procedures for the quality control of the medicine.

by thin-layer chromatography) (Chinese). J. Chinese Trad. Patent Med. (Zhongchengyao) 27 (8), 941-944 (2005). TLC of betaine on silica gel with acetone - ethanol - hydrochloric acid 10:6:1. Detection by spraying with a solution of potassium iodobismuthate. Quantitative determination by densitometry at 515 nm. Validation regarding linearity range (8.0 - 39.0 µg, r = 0.9992), precision (RSD = 1.62 %, n = 6), reproducibility (RSD = 2.14 %, n = 6), and recovery (99.75 %, RSD = 1.92 %, n = 6). Results are given for 12 real life samples. Discussion of the advantages of the method compared to HPLC.

J. AOAC Int. 89, 995-998 (2006). HPTLC of phenobarbital on silica gel, prewashed with methanol and then acetone, using dichloromethane - ethyl acetate - formic acid 95:5:1 in a horizontal chamber. Quantitation by densitometry in the absorbance/reflectance mode at 210 nm. The validity of the HPTLC-densitometric method was established through a study of linearity, sensitivity, accuracy, and reproducibility.

J. Liq. Chromatogr. & Relat. Technol. 30, 489-498 (2007). TLC of fenbendazole (methyl [5-(phenylthio)-1H-benzimidazole-2-yl]-carbamic acid methyl ester) on silica gel using dichloromethane - ethyl acetate - formic acid - methanol 60:5:3:3. Quantitative determination by absorbance measurement at 293 nm. Linearity (peak area) is given between 500 and 1400 ng/spot.

J. Chinese Trad. Patent Med. (Zhongchengyao), 29 (2), suppl. 1-3 (2007). TLC of taurine in Hedan pills on silica gel with 1) n-butanol - nitrile 20:1; and 2) chloroform - methanol 10:1. Detection 1) by spraying with 5 % vanillin in H2SO4 and heating at 105°C. Identification by fingerprint techniques.

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.

J. Pharm. Biomed Anal. 46(2), 391-394 (2008). HPTLC of conessine silica gel aluminum plates with toluene - ethyl acetate - diethyl amine 13:5:2 in a twin trough chamber saturated with mobile phase at 25 °C. Detection by spraying with modified Dragendorff's reagent. Quantification by densitometry in absorbance mode at 520 nm. Linearity was between 1 and 10 µg/zone (r2 = 0.9998).