J. Planar Chromatogr. 22, 65-71 (2009). Presentation of two simple and rapid HPTLC methods for early detection of the effects of herbicides using two different groups of plant biomarkers, which were developed as field tests (Herbicide Weed Response test - HWR-Test). Phytochemical changes can be detected before any morphological changes are visible on the plants. These changes are defined as biomarkers and can be detected by HPTLC-screening. After overall identification of the phytochemical biomarker pattern, two different biomarker groups, carbohydrates and amino acids, were detected using modified reagents for color reactions. Evaluation under daylight and videodensitometric analysis of digital images by VideoScan software. The screening method was previously described [H. W. Ravn, M. Hjorth, L. Lauridsen, P. Kudsk, S. K. Mathiassen, L. Mondolot, Bull. Environ. Contam. Toxicol. 75, 236-245 (2005)].

H. TRAITLER, A. STUDER, R.E. KAISER (eds): Instrumental HPTLC, Institute for Chromatography, Bad Dürkheim, FRG (1987), 277-284. TLC of trifluralin and its related compounds on silica with step-by-step chromatography in 5 eluting systems. Identification by densitometric registration, diffuse reflection electronic spectra denstitometry and differential signal resolution densitometry. The solvents used: 1. hexane - dichloroethane 7:3, 2. hexane - diethyl ether 3:1, 3. hexane - toluene 3:1, 4. benzene - acetonitrile - formic acid 130:40:1.5, 5. carbon tetrachloride - acetonitrile - formic acid 50:20:1.

J. Planar Chromatogr. 3, 251-255 (1990). New layer for problematic separation: TLC of 10 organic acid herbicides on silica - calcium sulfate layers 1:4 with different solvent systems. Identification by spraying with alkaline ethanolic solution of bromophenol blue.

J. Planar Chromatogr. 12, 145-149 (1999). TLC of 24 new chlorotriazines on silica gel with 14 different solvents. Visualization under UV 254 nm. Quantitation by densitometry. The proposed procedure can be used not only for monitoring the synthesis and to check the purity of the products but also for the determination of their stability and environmental behavior.

J. Planar Chromatogr. 17, 468-476 (2004). HPTLC of nine s-triazines on RP-18 and cyano phases with aqueous solutions of different organic modifiers (acetone, acetonitrile, tetrahydrofuran, and dioxane). After development the dried plates were examined under UV light at 254 nm. OPLC on RP-8 and RP-18 with water - acetonitrile. The plates were preconditioned in acetonitrile before development.

Planta Medica 82, 11/12, 1051-1057 (2016). The crude ethanol extract of the aerial parts of the liverwort Chiloscyphus polyanthos, its fractions and seven pungent sesquiterpene lactones isolated therefrom were analyzed against Candida albicans strains (hypersensitive mutant DSY2621, wild-type parent CAF2-1). 20 mL of C. albicans suspension were spread and solidified on the plate charged with samples (20 µg/spot), blank (methanol) or reference (miconazole); without any development, the plate was incubated overnight at 37 °C, sprayed with methyl thiazolyl tetrazolium chloride (MTT 0.25 %) and incubated for 6 h at 37 °C to obtain a purple background. Diplophyllolide A was active on both strains, four other lactones only on DSY2621 (l-diplophyllin, dihydrodiplophyllin, ent-3-oxodiplophyllin, 3β-hydroxyeudesma-4,11-dien-12,8α-olide)._x000D_

J. Planar Chromatogr. 9, 217-220 (1996). TLC of the degradation products of ethylenebisdithiocarbamate (i. a. ethylenethiourea, ethyleneurea, urea, and ethylenediamine on silica with acetone, acetone - water 99:1, 95:5, 90:10, and ethanol. Visualization reagents were sodium nitroferricyanide solution, iodine vapor and Ehrlich's reagent.

J. Liq. Chromatogr. Relat. Technol. 29, 2009-2018 (2006). TLC of 37 thiophosphorylglycinamide derivatives on silica gel, alumina, and silica gel impregnated with paraffin oil, in sandwich chambers at 4-5 °C with 11 ternary mobile phases from n-pentane - benzene - acetone with different composition. Detection by exposure to iodine vapor. Determination of the free energy of adsorption, the surface area of adsorption and the molecular lipophilicity of the TPGA derivatives.