J. Chinese Trad. Patent Med. (Zhongchengyao) 27(7), 775-777 (2005). TLC of extracts of Suzi Jiangqi pills on silica gel with 1) petroleum ether (60 - 90 ºC) - ethyl acetate 9:1; and 2) chloroform - ethyl acetate - methanol - water 15:40:22:10. Detection 1) under UV 365 nm; 2) 10 % H2SO4 in ethanol followed by heating until the spots are visualized. Identification by fingerprint techniques. Quantification of hespiridin by HPLC. The results for five batches of real life samples are given. Discussion of the application of the procedures for the quality control of the medicine.

J. Chinese Trad. Patent Med. (Zhongchengyao) 27(7), 864-867 (2005). TLC of extracts of Ruyi Jinhuang Tie ointment on silica gel with 1) n-butanol - glacial acetic acid - water 7:1:2; 2) petroleum ether (30 - 60 ºC) - ethyl formate - formic acid 15:5:1; 3) toluene - ethyl acetate - acetic acid 13:9:1; 4) chloroform - methanol - formic acid 96:3:1; 5) ethyl acetate - methanol - water 100:17:3 and toluene - ethyl acetate - formic acid water 20:10:1; 6) n-hexane - benzene - ethyl acetate 14:3:3. Detection under UV 365 nm and by spraying with 1 % FeCl3 solution in ethanol or with a solution of 5 % p-dimethylaminobenzaldehyde 10 % ethanolic H2SO4 followed by heating at 80 ºC. Identification of the fingerprint. Quantitative determination of berberine chloride by HPLC. The results of three batches of real life samples are given.

J. Planar Chromatogr. 19, 319-323 (2006). HPTLC of itopride hydrochloride on silica gel with methanol - ethyl acetate - toluene - triethylamine 2:5:12:1.Quantitative determination by absorbance measurement at 230 nm. The method was validated for accuracy and precision.

J. Chinese Trad. Patent Med. (Zhongchengyao), 27 (8), 903 - 905 (2005). TLC of Tangniaoling tablets on silica gel with 1) chloroform - methanol 20:1; 2) chloroform - methanol 10:1. Detection 1) by spraying with 5 % vanillin in H2SO4 solution and heating at 105°C. Identification by fingerprint techniques. Quantification of puerarin by HPLC.

Whole Plant Powder by HPTLC. Chromatographia 65 (11-12), 767-769 (2006). Description of a simple, precise and accurate HPTLC method for the determination of rutin in the whole plant powder of Amaranthus spinosus Linn, which has been reported to have anti-diabetic, anti-thrombotic, anti-inflammatory and anti-carcinogenic activity. TLC of a methanol extract of the whole plant powder on silica gel with ethyl acetate - formic acid - methanol - water 100:9:11:17. Quantitative determination by densitometric measurement in absorbance mode at 363 nm. Linearity was between 10 and 60 µg/mL.

J. Sep. Sci. 30, 3311-3315 (2007). HPTLC of lawsone in the leaves of Lawsonia alba on silica gel with chloroform – methanol 17:3. Quantitative determination by absorbance measurement at 334 nm. The hRf value of lawsone was 40 and selectivity regarding matrix was given. Linearity was between 100 and 1000 ng/zone. The precision was 1.72 % and recovery (by standard addition) was 98.8 %.

59th Indian Pharmaceutical congress F-54, 402, (2007). HPTLC of amlodipine besylate and bisoprolol on silica gel with methanol - ethyl acatete - ammonia 1:12:1. Densitometric evaluation at 229 nm. The method was linear in the range of 500-1000 ng/zone. Recovery was 99.9 -101.5 %.

Indian Drugs 44(8), 640 (2007). TLC, HPTLC and UV spectrophotometric methods have been developed and evaluated to compare the colour properties of saffron and Nyctanthes arbor-tristis which shows an orange red colour. HPTLC and TLC of methanolic extracts of saffron and calyx of Nyctanthes arbor-tristis on silica gel with ethyl acetate - isopropanol - water 13:5:2. Both extracts showed a major zone with hRf 23 corresponding to crocin, the major colour constituent of saffron. The presence of crocin was confirmed by UV spectra. TLC, HPTLC and UV data confirm the coloring similarity of Nyctanthes arbor-tristis.