J. Chinese Trad. Patent Med. (Zhongchengyao) 18 (5), 17-18 (1996). TLC on silica with 1) benzene - ethyl acetate 190:1, 2) chloroform - methanol 7:3, 3) cyclohexane - ethyl acetate 7:3. Detection with 1) 5 % vanillin in sulfuric acid - ethanol 1:4 and heating at 105 °C for 10 min; 2) under UV 254 nm. Identification by finger-print techniques. Quantification of hesperidin by HPLC.

Dtsch. Apoth. Ztg. 136, 24-33 (1996). Micro-TLC (resp. Nano-TLC) of approx. 65 drugs (herbal extracts) from DAB 10 on silica in horizontal chambers using - whenever possible - official methods from the DAB and comparison of the results. Advantages are i. a. saving of money, time, solvents, and better suitability for the laboratory in pharmacies.

CBS 84, 4-7 (2000) HPTLC-AMD of raffinose, sucrose, 1+6-kestoses, neo-kestose, nystose, and fructosyl-nystose on diol layer with a 9-step gradient from acetonitrile/acetone 1:1 - water 85:15 to acetonitrile/acetone 1:1 - water 95:5. Detection by dipping in 4-aminobenzoic acid reagent, followed by heating at 115 °C for 15 min. Quantitative determination by fluorescence measurement at 366/>400 nm and absorbance measurement at 400 nm.

CBS 89, 10-11 (2002). HPTLC on silica gel with 1) ethyl acetate - chloroform 1:1 over 30 mm followed by drying at room temperature for 15 min and 2) ethyl acetate - chloroform 9:1 over 50 mm in horizontal development chamber. Detection by dipping in anisaldehyde - sulfuric acid reagent followed by heating at 60 °C for 5 min. Quantitative determination by absorbance measurement at 440 nm. Precision (n=6 at 100 mg/kg feed) is found to be 2.7 %.

J. Chinese Trad. Patent Med. (Zhongchengyao) 25 (8), 682-682 (2004). TLC of icanine and naringoside on silica gel with ethyl acetate - butanone - methanol - water 10:6:3:1. Detection by spraying with 5 % AICI3 in ethanol and heating at 105 ºC for 5 min, and under UV 365 nm. Identification by standard comparison.

Indian Journal of Pharmaceutical Sciences 66 (1), 132-135, 2004. HPTLC of bacoside A in Bacopa monnieri and in its commercial monoherbal capsule formulation on silica gel 60 F254 aluminium sheet, 20 x 10 cm, with chloroform - methanol - water 30:15:1. Quantification by densitometry at 540 nm via linear regression in the range of 30 -180 µg/mL. Rf of Bacoside A was found to be 0.51. Validation regarding to accuracy, precision, specificity and recovery (97.4 – 100.1%). The proposed simple and sensitive method provides faster and cost effective qualitative control for routine analysis of bacoside A in formulations containing Bacopa monnieri saponins.

J. Chinese Trad. Patent Med. (Zhongchengyao) 25 (12), 970-974 (2004). TLC on silica gel with 1) ethyl acetate - methanol - water 6:1:3, 2) n-butanol - glacial acetic acid - water 4:1:5, 3) chloroform - methanol - water 28:10:1. Detection 1) by spraying with 1 % AICl3 and under UV 365 nm, 2) by spraying with 0.5 % ninhydrin in ethanol and heating at 105 ºC, 3) under UV 365 nm. Identification by fingerprint techniques. Quantitative determination of puerarin by HPLC.

Indian J. Pharm. Sci. 66 (3), 306-308 (2004). HPTLC on silica gel with n-butanol - methanol - 6 M ammonia 5:1:2. Gatifloxacin showed Rf values of 0.47 ± 0.03. Quantitative determination by absorbance measurement at 292 nm. The method was validated in terms of linearity (400-1200 ng/spot), precision (intra-day variation 1.3 to 3.2 %, inter-day variation 3.9 to 5.0 %), accuracy (93.3 to 99.4 %), and specificity. The limit of detection and limit of quantification for gatifloxacin were found to be 10 ng/spot and 50 ng/spot respectively. The method is simple, sensitive, precise, and can be used for the routine quality control testing of marketed tablet formulations (400 mg).