J. Planar Chromatogr. 18, 151-154 (2005). HPTLC of imidacloprid, fenitrothion, and parathion on silica gel (prewashed with methanol and activated at 110 °C for 30 min) with hexane - acetone 7:3 in an unsaturated twin-trough chamber. Quantitative determination by absorbance measurement at 287 nm.

J. Planar Chromatogr. 19, 104-108 (2006). HPTLC and TLC of ciprofloxacin and enrofloxacin on silica gel with dichloromethane - methanol - 2-propanol - 25% aqueous ammonia 3:3:5:2. The plate was developed in a DS chamber to the top and the separation chamber was then uncovered for about 1 cm to enable the solvent to evaporate. In this way the plate was developed continuously for 2 h. Bioautography by immersion of the plate in a microorganism solution (Bacillus subtilis), incubation for 22 h at 37 °C. Visualization by spraying with 3-[4,5-dimethylthiazol-2-yl]-2,5-diphenyltetrazolium bromide (MTT) solution and leaving for approximately 30 min at room temperature.

J. Liq. Chromatogr. Relat. Technol. 28, 2467-2478 (2005). TLC of enrofloxacin and ciprofloxacin on silica gel in sandwich chambers with dichloromethane - methanol - 2-propanol - 25 % ammonia 3:3:5:2. Detection by bioautography using nutrient medium and B. subtilis spore suspension. Establishing of conditions for a semiquantitative TLC-DB (direct bioautography).

J. Planar Chromatogr. 20, 19-25 (2007). TLC of fructooligosaccharides with raftilose as standard on silica gel impregnated with sodium acetate with butanol - acetic acid - water 2:2:1 in a saturated vertical twin-trough chamber with. Visualization with the diphenylamine-aniline-phosphoric acid reagent (in acetone). The blue-pink spots were also detected by reflectance densitometry at 370 nm. MALDI-MS was used for analysis of fructooligosaccharides.

St. Hil. Pharmazie 62, 876-880 (2007). TLC of matessaponin 1 and matessaponin 2 on silica gel with chloroform - ethanol - water 12:8:1 and 8:8:1. Detection by spraying with anisaldehyde sulfuric acid reagent followed by heating at 100 °C.

J. Liq. Chromatogr. Relat. Technol. 30, 2245-2252 (2007). TLC of authentic vitamin B12 and extract on silica gel with 2-propanol - 28 % ammonia - water 7:1:2 and 1-butanol - 2-propanol - water 10:7:10 in the dark at room temperature. After drying agar containing basal medium and pre-cultured E. coli 215 was overlaid and then incubated at 30 °C for 20 h. After spraying with a methanolic solution of 2,3,5-triphenyltetrazolium salt corrinoid compounds were detected as red zones under white light.

Food Chem. 113, 351-355 (2009). HPTLC of ergosterol peroxide from the mycelia of Hericium erinaceum (lion’s mane mushroom), Laetiporus sulfureus (chicken mushroom), and Morchella esculenta (common morel), as well as in the fruiting bodies of Boletus edulis (king bolete), Suillus bovinus (Jersey cow mushroom), and B. badius (bay bolete) on silica gel with n-hexane - ethyl acetate 1:1. Detection by spraying with an alcoholic solution of phosphotungstic acid, followed by heating at 100 °C for 5 min. Quantitative determination by absorbance measurement at 515 nm. The hRf value was between 30 and 32. Selectivity regarding matrix was given. Linearity was between 0.125 and 1.00 µg/spot. The limit of detection was 50 ng/spot.

J. AOAC Int. 92, 1153-1159 (2009). HPTLC of sucralose on amino phase with acetonitrile - water 4:1 in a horizontal or standard development chamber without chamber saturation. For detection the plate was heated at 190 °C for 20 min, either in a drying oven or on a temperature-controlled heating plate. Quantitative determination by absorbance and fluorescence measurement at 254 nm. The results of the interlaboratory comparison show good precision characteristics. The fluorescence measurements of the sucralose derivatives indicated better method performance, compared with absorbance measurements in the UV.