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 %.

Chinese J. Environ. Chem. (Huanjing Huaxue) 12, 225-230 (1993). TLC of 7 dyes on silica with 14 different solvent systems (two for each dye). Identification by comparison colors and Rf values with those of standards. Confirmation and quantification by HPLC.

J. Planar Chromatogr. 18, 388-390 (2005). TLC of haloperidol and metabolites on RP-18 previously equilibrated for 30 min with methanol containing 0.001 % triethylamine at 27 +/- 1 °C (room temperature). Detection by treatment with iodine vapor. Quantitative determination at 230 nm.

J. Chromatogr. A 754, 279-284 (1996). Study of the effect of soil amendment using urban compost, agricultural organic amendments and surfactants on the mobility of diazinon and linuron by soil TLC on soil plate with water. 14C pesticide detected by radiography. Discussion of the modifications in Rf values due to the addition of the amendments, and of the correlation between the Rf values and the content of total organic carbon in the amended soils, and of the mechanism of the pesticide mobility.

J. Chromatogr. A 1524, 273-282 (2017). Application of effect-directed analysis (EDA) to assess the effects of a substance via in-vitro bioassays, thus to provide information about the relevance of the substance to the ecosystem. Development of selective two-dimensional (2D) HPTLC-EDA to increase the peak capacity and facilitate the identification of effective compounds in environmental samples of high complexity. Selection of effective zones in the first dimension in terms of heart-cutting and transfer to the second dimension through elution head-based extraction. Development and validation of three 2D approaches by using the retardation factors of the first dimension to adjust the mobile phase for the second dimension, achieving the best results in terms of peak capacity and orthogonality. Exemplarily shown for acetylcholinesterase (AChE) inhibition, the analysis of spiked surface water by 2D HPTLC-EDA allowed to assign zones with neurotoxic effects to the corresponding substances. The results proved that the 2D separation reduced the complexity of effective zones and thus facilitated the subsequent identification of effective compounds, and provided knowledge about a substance effect enabled assessment of its relevance to the environment.

J. Planar Chromatogr. 9, 203-207 (1996). TLC and OPLC of hydroxy derivatives of polycyclic aromatic hydrocarbons (1-naphthol, 2-naphthol, 2,3-dihydroxynaphthalene, 2,7-dihydroxynaphthalene, 1,3-dihydroxynaphthalene, 1,5-dihydroxy-naphthalene, 9-hydroxyphenanthrene, 1-hydroxypyrene) on RP-18 with acetonitrile - water 1:1 or 3:2 and methanol - water 3:1 for planar chromatography and acetonitrile - water 3:2 for OPLC. Visualization under UV 254 and 365 nm; the plates were then sprayed with fast blue B salt solution and observed again under UV 365 nm.

CBS 85, 10-11 (2000) HPTLC-AMD of water samples on silica gel with 33-step gradient from acetonitrile - ammonia to dichloromethane and dichloromethane - acetic acid to n-hexane. Detection via Chrom Biodip (Merck) by dipping in bacteria solution (Bacillus subtilis) followed by incubation at 30 °C over night and spraying with MTT-tetrazolium salt reagent followed by incubation at 30 °C for 5-30 min. Visual evaluation.

Acta Chromatographica No. 7, 149-158 (1997). TLC of nitro- and azaarenes (nitronaphthalene, nitrofluorene, nitroanthracene, nitropyrene, quinoline, azafluorene, benzo(h)quinoline) on silica with acetonitrile - water 9:1 for nitroarenes and methanol - water for azaarenes. Detection under UV 254 and 366 nm and by spraying with specific reagents for the detection of functional groups: 15 % tin(II) chloride in 36 % hydrochloric acid and p-dimethylaminobenzaldehyde for nitroarenes and Dragendorff's reagent for azaarenes. Detection limit for nitroarenes 25 - 100 ng, for azaarenes 50 - 100 ng.