Biochemical Systematics and Ecology 23, 747-755 (1995). TLC of carotenoid composition of seven prasinophytes on silica - calcium carbonate 2:1 with chloroform - methanol - heptane 100:1:400 and acetone - heptane 2:3. Detection in daylight.

J. Agric. Food Chem. 49, 3584-3588 (2001). TLC of b-carotene, esterified b-cryptoxanthin, zeaxanthin, capsanthin, capsorubin on silica gel with hexane - ethyl acetate - ethanol - acetone 95:3:2:2

J. Chromatogr. A 1188 (2), 295-300 (2008). Determination of food dyes (tartrazine, azorubine and sunset yellow) in different products by HPTLC combined with image processing of scanned chromatograms, on 3-aminopropyl modified silica gel with isopropanol - diethyl ether - ammonia 2:2:1. Quantification by using digital processing of images with special-purpose software. The limit of detection was between 5 and 9 ng/spot and the limit of quantification was between 10 and 18 ng/spot. Recovery was between 96.4 and 102.7 %.

Chromatography and Analysis 5-7 (1991). TLC of dye-stuffs from textile fragments found at UK archaeological sites. Comparison with HPLC. HPLC is regarded as useful for further investigations, TLC is better as a rapid screening procedure at low cost.

J. Planar Chromatogr. 14, 208-210 (2001). Separation of dyes, polycyclic hydrocarbons (phenanthrene, benzopyrene, anthracene, fluoranthene, pyrene, triphenylene, azulene, naphthacene, chrysene, perylene) and a vegetable chlorophyll extract on plates prepared from Piresorb A, silica gel, luminophore and liquid glass as binder with benzene, hexane, benzene - hexane 1:4 and ethyl acetate - acetonitrile 3:7. For flow TLC it is necessary to use TLC plates with sorbents different from those used in classical TLC.

J. Planar Chromatogr. 23, 23-27 (2010). HPTLC of ziprasidone (5-[2-[4-(1,2-benzothiazol-3-yl)piperazin-1-yl]ethyl]-6-chloro-1,3-dihydroindol-2-one) on silica gel with hexane - dioxane - propylamine 5:45:2 up to 9 cm (under saturated conditions) and on RP8 with tetrahydrofuran - phosphate buffer (pH 9.0) 1:1 up to 4.5 cm (under unsaturated conditions), both in horizontal chambers. Quantitative determination by videodensitometry at 254 nm. Calibration was linear in the range 0.2-1.2 and 0.1-1.1 µg/spot ziprasidone for NP-HPTLC and RP-HPTLC, respectively. The intra-day precisions for 0.4-1.2 µg/spot on NP-HPTLC was 2.0 to 5.2 % and on RP-HPTLC 4.0 to 6.1 %; the respective inter-day precision for NP-HPTLC was 2.0 to 6.7 % and for RP-HPTLC 4.1 to 7.1 %. LOD/LOQ on NP-HPTLC was 0.03/0.09 µg/spot; using RP-HPTLC, LOD/LOQ was 0.02/0.06 µg/spot. The specificity of the methods was confirmed by comparison of hRf values (74 +/- 2 in NP-HPTLC and 36 +/- 1 in RP-HPTLC, n=12).

J. Braz. Chem. Soc. 27, 1067-1077 (2016). HPTLC for the kinetic study involving the conversion of 2,3-dichloro-6,7-dinitroquinoxaline (1) into 2-chloro-6,7-dinitro-3-pyrrolidinoquinoxaline (2) and then into 6,7-dinitro-2,3-dipyrrolidinoquinoxaline (3) on silica gel through monosubstitution of a chlorine group with one equivalent of pyrrolidine. First, for obtaining calibration sets, 1 μL of solutions containing compounds (2) and (3) in chloroform with concentrations ranging from 1.0 to 8.0 mM were applied separately on chromatographic plates. In the kinetic study, 100 μL of a solution of compound (1) in chloroform (0.32 M) was added to 100 μL of pyrrolidine in chloroform (1 M eq). 10 μL of the reaction media taken at different times (30, 60, 90, 120, 180, 240, 300, 600, 1200 and 1800 s) was applied onto the TLC layer and separated with chloroform. All the final chromatograms were directly scanned to generate their digital image. Detection by absorbance measurement at 411 nm for (2) and 331 nm for (3). Kinetics profile was constructed for reagent (2) consumption and product (3) formation.

Chromatographia 20, 99-101 (1985). TLC of food dyes, indigo carmin, cochineal red, acid amaranth I, orange yellow S and tartrazine G on thin MgO layers with mixtures of 15 % sodium citrate and methanol in proportions from 9:1 to 1:9. The best proportion of the developing solvent mixture was 6:2. It permits the full separation of the dye mixture from a 0.3 mL sample solution with concentrations of 1 x 10 to minus 6 mole/liter.