Int. J. Pharm. 67, 131-137 (1991). TLC of glibenclamide on silica with benzene – acetic acid – ethyl acetate – acetone 65:6:12:30 and with chloroform – cyclohexane – ethanol – acetic acid 9:9:1:1. Visualization by exposure to iodine vapor or under UV.

Chromatographia 35, 275-280 (1993). Determination of the lipophilicity of 14 anti-hypoxia drugs by reverse-phase TLC on paraffin-impregnated silica with 25-60% acetonitrile in steps of 5% containing a changing or constant concentration of buffer. Detection under UV 254 nm. Discussion of the correlation between lipophilicity and the specific hydrophobic surface area of the drugs, and the effect of the concentration of buffer on the retention of the drugs. Comparison of the results with those obtained by reverse-phase HPLC.

J. Chinese Herb Med. (Zhongcaoyao) 26, 243-244 (1995). TLC of paeoniflorin on silica with 1) chloroform - ethyl acetate - methanol - formic acid 200:25:50:1; 2) chloroform - methanol 8:2. Detection and identification by spraying with vanillin-sulfuric acid reagent 5%, and 2) 1.5% 2,4-dinitrophenylhydrazine in sulfuric acid - water 1:4. Quantification by HPLC.

Indian Drugs 33(12), 601-603 (1996). HPTLC on silica with toluene -methanol - triethanolamine 45:5:1. Densitometry at 258 nm. Higher sensitivity and sample throughput in HPTLC than in HPLC.

Biomed. Chromatogr. 12, 78-85 (1998). A review with 126 references on the application of TLC as well as other chromatographic techniques to the analysis of the title materials and medicines, involving quantification of active principles or index components, quality evaluation of crude drugs identification characterization and preparative isolation of new compounds for medicinal use from plants, assay of preparations of plant origin and pharmaconkinetik and pharmacological studies of the drugs.

Chromatographia 53 (Sup.), S-442 - S-444 (2001). Study of the chromatographic behavior of six antihypertensive drugs from the class of ACE inhibitors under conditions of salting-out. TLC on silica gel, cellulose and polyacrylonitrile (PANS) as sorbents, and with different concentrations of aqueous ammonium sulfate solution as solvents. It was established that in all cases studied hRf values decrease with increasing salt concentration in the solvent systems used. A linear relationship of the corresponding RM values and ammonium sulfate content in the solvent was observed. Proposal of a separation mechanism based on hydrophobic interaction between the sorbent and sorbens.

J. Chinese Trad. Patent Med., (Zhongchengyao) 25(5), 402-405 (2003). TLC on silica gel with chloroform - isopropanol - methanol - ethyl acetate - NH3 conc. 80:30:30:30:9. Detection under UV 254 nm. Identification of by finger print technique. Quantitation by densitometry at 270 nm. Publication of the determination results of adenosine, uridine and guannosine in 14 drugs cultivated in different regions. Discussion of the discrepancy among the drugs from different sources, and use of the procedure for the screening and the quality control of the drugs.

CBS 100, 2-5 (2008). HPTLC of photodegraded UV filters and sunscreen on silica gel LiChrospher prewashed with methanol. AMD 2 development of UV filter standards photodegradation products with diisopropylether - n-hexane in 6 steps over 50 mm without preconditioning, and of sunscreen samples photodegradation products with t-butylmethylether - n-hexane in 7 steps over 50 mm with preconditioning, followed by drying at 120 °C for 30 min. Detection at 254 and 366 nm, followed by biodetection via dipping the plate in a Vibrio fischeri solution for 1 s and evaluation with the Bioluminizer (exposure time 55 s). Densitometric evaluation by multi-wavelength scan at 200-400 nm.