J. Chromatogr. 589, 390-393 (1992). TLC on silica with a) chloroform - methanol 8:2, and b) chloroform - methanol - acetic acid 80:20:2. Detection by immersing in 4-methoxybenzaldehyde solution and heating at 130 °C for 2 min. Quantification by fluorodensitometry at 366 nm.

J. Planar Chromatogr. 18, 423-426 (2005). HPTLC of antibiotics (sulfadimidine, sulfadiazine, sulfaguanidine, trimethoprim) on silica gel without chamber saturation in a twin-trough chamber with chloroform - methanol 89:11. Quantification by videodensitometry at 254 nm. Limit of detection was 0.05 µg per spot for sulfadimidine, sulfadiazine, and sulfaguanidine, and 0.1 µg per spot for trimethoprim.

J. Planar Chromatogr. 9, 450-455 (1996). Analytical TLC of aminoarenes (aminonaphthalene, -phenylnaphthalene, -pyrene, -fluoroanthene, -anthracene, -phenanthrene, -quinoline, isoquinoline, -chrysene) on RP-18 with acetonitrile - water 9:1; semipreparative TLC on aluminium oxide with dichloromethane - hexane - ether 1:1:1. Visualization under UV 254 and 366 nm.

CBS 114, 13-15 (2015). To test the new HTpSPE–TOFMS screening, TLC of a pesticide mixture (acetamiprid, azoxystrobin, chlorpyrifos, fenarimol, mepanipyrim, penconazole, pirimicarb) in several plant matrices (cucumber, tomato, grape, apple extracts) on amino layer pre-treated by dipping in 2 % formic acid solution in acetonitrile and drying for 10 min. Development with 10 mL acetonitrile, migration distance 75 mm, drying 5 min; second development in the backwards direction with 10 mL acetone, migration distance 45 mm, drying 3 min. Detection under UV 254 nm, UV 366 nm and white light. For HTpSPE and μL-flow injection analysis–TOFMS the target analyte zone was eluted with the TLC–MS Interface into autosampler vials with acetonitrile – 10 mM ammonium formate 1:1, flow rate 0.2 mL/min, Elution time was 60 s. An HPLC system was coupled via a PEEK capillary and a nano-electrospray ionization interface to a TOFMS without an analytical column. The mean recovery for a pesticide mixture spiked into fruit and vegetable extracts was between 86 % and 116 % with %RSDs of 1.5–10 % (n = 5).

Dünnschicht-Chromatographie InCom Sonderband 1996, 157-165. HPTLC of benzo[g,h,i]perylene, indeno[1,2,3]pyrene, benzo[a]pyrene, benzo[b]fluoroanthene, benzo[k]fluoroanthene and fluoroanthene on caffeine-impregnated silica prewashed with dichloromethane, precooled for 30 min at -20 °C, with dichloromethane at -20 °C. After removal of the eluent the plates are dipped for 2 s into a solution of paraffin (low viscosity)/n-hexane 1:2 and dried again (for stabilization and intensification of the inherent fluorescence of the PAH). Quantification by densitometry.

CBS 89, 2-3 (2002). HPTLC of norfloxacin on silica gel (prewashed with methanol - chloroform 1:1) with methanol - chloroform - ammonia 51:34:15 in horizontal developing chamber with sandwich configuration. Quantitative determination by fluorescence measurement at 313/>400 nm.

J. Planar Chromatogr. 10, 55-58 (1997). TLC of nitronaphthalene, nitrofluorene, nitroanthracene, nitropyrene, quinoline, azafluorene, and benzo(h)-quinoline on RP-18 silica with acetonitrile - water 9:1 for nitroarenes and with methanol - water 9:1 for azaarenes. Detection under UV 254 and 366 nm, then by spraying with 15% tin(II) chloride in 36% hydrochloric acid + p-dimethyl-aminobenzaldehyde for nitroarenes and Dragendorff's reagent for azaarenes. Detection limits for 2-nitrofluorene 0.10 µg, for 9-nitroanthracene 0.075 µg, for 1-nitropyrene 0.025 µg, for 1-nitronaphthalene 0.10 µg.

J. Planar Chromatogr. 28, 12-16 (2015). HPTLC of acrylic acid (as trans-cinnamic acid after labeling through a coupling reaction with iodobenzene at 60 ºC for 30 min) in water samples on silica gel with chloroform - methanol - acetic acid mixture 90:10:1. Quantitative determination by absorbance measurement at 254 nm. The hRF value for labeled acrylic acid was 47. Linearity was between 0.1 and 1 mM. The intermediate precisions were below 1.2 % (n=3). The LOD for the labeled acrylic acid was 0.1 nmol. Recoveries were in the range of 97-103 %.