Eur. J. Clin. Chem. Clin. Biochem. 31, 617-624 (1993). TLC of porphyrin methyl esters (uroporphyrin, heptacarboxylic, hexacarboxylic, pentacarboxylic porphyrin, coproporphyrin) on silica with hexane - dichloromethane - acetone 41:41:18. Separation of coproporphyrins I-IV after hydrolysis by HPLC.

J. Planar Chromatogr. 19, 393-397 (2006). TLC of uroporphyrin I, uroporphyrin III, coproporphyrin I, coproporphyrin III, and protoporphyrin IX (as methyl esters) on polyamide 11, cellulose and silica gel with methanol, ethanol, propanol, butanol, acetonitrile and tetrahydrofuran in a saturated chamber. Porphyrins on cellulose were detected by placing in iodine vapor for 5 min; on silica gel and polyamide 11 the porphyrins were detected as red spots in UV light at 254 nm. Chromatographic retention data and a possible retention mechanism are discussed.

Phytochemistry 28, 2949-2954 (1989). TLC of tryptophol esters on silica with chloroform - benzene 1:1 and chloroform - ethanol 19:1. Visualization with p-dimethyl-aminobenzaldehyde-HCl reagent.

Polish Journal of Pharmacology and Pharmacy 39, 91-95 (1987). TLC or N-methylpyridyl derivatives of bromophenylsuccinimide on silica with chloroform - acetone 9:1. Visualization with 0.05M iodine in 10% HCL.

J. Planar Chromatogr. 21, 249-250 (2008). HPTLC of diazepam, oxazepam, nitrazepam, lorazepam, chlordiazepoxide, and flurazepam on silica gel in a saturated twin trough chamber with chloroform - methanol 9:1. Detection by spraying with 5 % sodium hydroxide solution followed by 1 % m-dinitrobenzene in dimethyl sulfoxide. Violet bands were obtained for diazepam, the other compounds did not react. The sensitivity of this reagent for diazepam is approx. 5 µg/spot.

F-255 (2010). TLC of irbesartan on silica gel with ethyl acetate – toluene – glacial acetic acid 35:15:1. Quantitative determination by absorbance measurement at 240 nm. The method was linear in the range of 200-800 ng/band. The sample was subjected to different stress conditions (acid, alkali, oxidation, thermal & photolytic). The compound was well separated from the different degradation products and could be estimated without any interference from the degradation product. The proposed stability indicating assay method was found suitable for routine quality control.

62nd Indian Pharmaceutical Congress Abstract No. F-381 (2010). TLC of citicoline sodium on silica gel with chloroform – methanol – water 3:7:3. The hRf value was 53. Quantitative determination by absorbance measurement at 280 nm. The results of the method were comparable with the results of a RP-HPLC method.

J. Chromatogr. Sci. 56 (4), 376-381 (2018). Investigation of the lipophilicity of new anticancer active 10-substituted 1,6- and 3,6-diazaphenothiazines using RP TLC. Determination of their lipophilicity (RM0 and log PTLC) with mixtures of acetone and Tris buffer as mobile phases. The obtained results showed significant intercorrelation between RM0 and the specific hydrophobic surface area b, revealing congeneric classes of diazaphenothiazines. Transformation of the parameter RM0 into parameter log PTLC by use of the calibration curve. Comparison of the parameter log PTLC with computationally calculated lipophilic parameters log Pcalcd. Discussion of the lipophilicity with the structure elements and correlation with molecular descriptors, ADME properties and in vitro anticancer activities.