J. Chinese Trad. Patent Med. (Zhongchengyao) 11, 874-877 (2004). TLC on silica gel with 1) ethyl acetate - butanone - formic acid - water 5:3:1:1, 2) 2-fold development with ethyl acetate - methanol - water 100:17:13 and toluene - ethyl acetate - formic acid - water 20:10:1:1, 3) chloroform - ethyl acetate - methanol - formic acid 200:25:50:1. Detection 1) by spraying with 1 % FeCI3 in ethanol, 2) by spraying with 3 % AICl3 in ethanol and under UV 365 nm, 3) by spraying with 10 % H2SO4 in ethanol and heating. Identification by fingerprint techniques. Quantitative determination of mentholum, borneolum syntheticum by GC.

J. Chinese Trad. Patent Med. (Zhongchengyao) 25 (9), 771-773 (2004). TLC on silica gel with isooctane - dibutyl ether - glacial acetic acid 8:5:5. Detection by spraying with 10 % H2SO4 in ethanol and heating at 105 ºC. Identification by standard comparison. Quantification of cholic acid by densitometry.

Chinese J. Trad. Patent Med. (Zhongchengyao) 26 (2), 113-115 (2004). TLC of Qirong medicinal wine on silica gel with 1) n-hexane - ethyl acetate 4:1; 2) petroleum ether (30-60 ºC) - ethyl acetate - formic acid 15:5:1; 3) chloroform - methanol 9:1; 4) ethyl acetate - acetone - formic acid - water 5:5:1:1. Detection 1) under UV 365 nm, and by spraying with 5 % KOH in methanol and under UV 365 nm. Identification by fingerprint techniques. Quantification of psoralen and isopsoralen by HPLC.

Chinese J. Trad. Patent Med. (Zhongchengyao) 26 (1), 16-19 (2004). TLC of neutral sugars, rhamnose, xylose, and glucose, extracted from Ulva pertusa alga, on silica gel with n-butanol - ethyl acetate - isopropanol - acetic acid - water - pyridine 7:20:12:7:6:6. Detection by spraying with a solution of aniline hydrogen phthalate (0.93 g) – phthalic acid (1.66 g) – water saturated n-butanol (100 mL), followed by heating at 110 ºC for 10 min. Identification and quantification by comparison with the standards. Application of an orthogonal test to investigate the effects of four factors (volume of water, temperature, extraction time, and pH) on the yield of the compounds, and determination of the optimum extraction conditions.

seed and the phoney, Xanthium Spinosam L. seed) (Chinese). Chinese J. Hosp. Pharm. (Zhongguo Yiyuan yaoxue Zazhi) 25 (2), 185-187 (2005). HPTLC on silica gel with n-butanol - glacial acetic acid - water 4:1:5. Detection by exposing to ammonia vapours. Identification by fingerprint technique combined with morphological differentiation and UV spectra comparison.

J. Chinese Trad. Patent Med. (Zhongchengyao) 27(5), 538-541 (2005). TLC of Biaoshi Ganmao granule extracts on silica gel developed with 1) chloroform - methanol - water 28:10:1, 2) chloroform - methanol - ammonia 40:10:1, 3) n-hexane - diethyl ether - glacial acetic acid 50:50:1, 4) ethyl acetate - methanol - water 100:17:13, 5) toluene - ethyl acetate - formic acid 20:10:1. Detection 1) under UV 365 nm, 2) by spraying with 2 % ninhydrin solution followed by heating at 105 ºC until the spots are visualized, 3) under UV 254 nm, 4) by spraying with AlCl3 solution. Identification by fingerprint technique. Quantification of puerarin by HPLC. The results for four batches of real life sample are given.

J. Chinese Trad. Patent Med. (Zhongchengyao) 27 (7), 778-790 (2005). TLC of the extracts of Tongmai Jiangzhi capsules on silica gel with methanol - ethyl acetate - formic acid 55:12:6. Detection by exposing to ammonia vapor until the spots are visualized. Identification by fingerprint techniques. Quantification of curcumin, emodin, and chrysophanol by HPLC. The procedure was validated. The results for four batches of real life samples are given.

Chromatographia 65 (1-2), 105-110 (2007). HPTLC of seven pharmaceuticals, enrofloxacine, oxytetracycline, trimethoprim, sulfamethazine, sulfadiazine, sulfaguanidine and penicillin G/procaine in production wastewater (obtained by solid-phase extraction on hydrophilic-lipophilic balance cartridges with methanol) on cyano phase with 0.05 M oxalic acid - methanol 81:19 after optimization of chromatographic separation by systematic variation of the mobile phase composition using genetic algorithm approach. Quantification by videodensitometry at 254 and 366 nm. Validation of the method by investigation of linearity ranges (1.5 - 15.0 µg/L for enrofloxacine, 100 - 500 µg/L for oxytetracycline, 150 - 600 µg/L for trimethoprim, 300 - 1100 µg/L for sulfaguanidine and 100 - 400 µg/L for sulfamethazine, sulfadiazine and penicillin G/procaine, R > 0.991), its mean recoveries (74.6 - 117.1% and 55.1 - 108.0% for wellspring water and production wastewater, respectively). Application of the method in determination of pharmaceuticals in wastewater samples from pharmaceutical industry.