Planta Med. 55, 367-371 (1989). TLC on silica with hexane - ethyl acetate 2:1. Detection under UV 254 nm and by spraying with anisaldehyde - sulfuric acid reagent.

Biochemical Systematics and Ecology 24, 43-47 (1996). TLC of alkamides on silica with hexane - ethyl acetate. Identification by MS.

J. Chromatogr. Sci. 52 (9), 1095-1103 (2014). Investigation of the retention behavior for a series of amine neurotransmitters, their precursors, metabolites and structurally related drugs on RP-18, RP-8, RP-2, cyano and diol phases with mixtures of phosphate buffer and methanol. According to the computed lipophilicity of the neutral form of the investigated compounds the most lipophilic compound is dobutamine (log PN = 3.78), while the least lipophilic is norepinephrine (log PN = -0.14). Dobutamine was the most lipophilic compound on RP-18 (RM0 = 1.58) and CN phase (RM = 1.21). Norepinephrine on RP-8 phase was the least lipophilic one (RM0 = -0.70). A similar chromatographic behavior could be assumed for RP-18, RP-8 and cyano phases. The mean of the RM values and PC1/RM (scores of the first principal component) experimental lipophilicity indices showed a high correlation with the computed ones.

J. Planar Chromatogr. 3, 336-339 (1990). TLC of diphenylamine, carbazole, indole and p-dimethylaminobenzaldehyde on silica, alumina, and silica mixed either with alumina or cellulose using cyclohexane and benzene in various proportions as mobile phase. Separation of carbazole from diphenylamine has been achieved on alumina with cyclohexane - benzene 1:1.

J. Chromatogr. Sci. 33, 316-320 (1995). Use of the addition of a-, b-, g-, and hydroxypropyl-b-cyclodextrins to aqueous mobile phases to enhance the migration of p-nitroanilines and their analogues on TLC. Determination of the equilibrium binding constants for the solute-cyclodextrin complexes formed in the mobile phase. Comparison of the results obtained using silica gel and polyamide plates. Urea, which is used to solubilize the cyclodextrins in aqueous solutions, is also found to increase the migration of the compounds.

CBS 99, 6-7 (2007). HPTLC of sildenafil in pharmaceutical products and herbal preparations (extracted with methanol) on silica gel with chloroform - methanol - diethylamine 90:10:1 in a twin-trough chamber saturated for 30 min. Quantitative determination by absorbance measurement at 305 nm. The hRf value of sildenafil was 48 and selectivity regarding matrix was given. The 4-level calibration (n=3) from 150 to 1200 ng/band showed a polynomial regression. Inter-day precision was <1 % (n=6). Mean recovery (by standard addition ) was 98.2 % for three different concentration levels.

62nd Indian Pharmaceutical Congress Abstract No. F-244 (2010). TLC of fluvoxamine maleate on silica gel with benzene – methanol 5:4. The hRf value was 52. Quantitative determination by absorbance measurement at 256 nm. The linearity was in the range of 500-3000 ng/band with r2=0.998. The drug was subjected to acidic, alkaline and oxidative, dry heat, UV and photolytic stress. Since the method could effectively separate the drug from its degradation products, it can be used for stability studies.