J. Liquid Chromatogr. 17, 151-156 (1994). HPTLC of N-methyl carbamate insecticides on silica; with toluene - acetone 4:1 for carbaryl, carbofuran, methiocarb; with hexane - acetone - chloroform 75:15:10 for propoxur. Detection by dipping first into KOH in methanol and then into a freshly prepared solution of 25 mg p-nitrobenzene-diazonium fluoborate in 90 mL acetone plus 10 mL of diethylene glycol. Quantification by densitometry at the wavelengths of maximum absorbance for each compound, as determined from the in-situ spectra recorded from 400-700 nm.

J. Planar Chromatogr. 20, 95-99 (2007). TLC of atrazine and simazine on silica gel with hexane - chloroform - acetone 12:5:3 with chamber saturation. Detection under UV light at 254 nm. Also quantitative evaluation. The genetic algorithm proved to be an optimization procedure which can be successfully applied to optimization of microwave-assisted extraction experiments. Application of recovery experiments from spiked soil.

Detection by UV and by phosphomolybdic acid reagent.

J. Agric. Food. Chem. 38, 1743-1754 (1990). One- and two-dimensional TLC of PROWL herbicide, pendimethalin [N-(1-ethylpropyl)-3,4-dimethyl-2,6-dinitobenzenamine] with chloroform - acetone - acetic acid 12:6:2 and 18:9:3, also with 4 other systems; autoradiogrphy; quantification by scintillation after scraping. Preparative TLC with 1,2-dichloroethene; two-dimensional TLC with 1. benzene and 2. heptane - triethylamine 95:5.

J. Agric. Food Chem. 45, 286-293 (1997). HPTLC of acifluorfen (5-[2-chloro-4-(trifluoromethyl)phenoxy]-2-nitrobenzoic acid), and aminoacifluorfen on silica with toluene - ethyl acetate - acetic acid - water 100:100:2:1. Densitometry.

J. Planar Chromatogr. 16, 263-267 (2003). Comparison of selectivities of TLC systems by use of correlations between RF(II) and RF(I) values (by analogy with two-dimensional TLC). 2D-TLC of 10 urea herbicides (monolinuron, linuron, metobromuron, chlorbromuron, chlorotoluron, diuron, metoxuron, isoproturon, chloroxuron, methabenzthiazuron) on cyanopropyl-modified silica gel, normal-phase with ethyl acetate - heptane 1:4 (step A) and reversed-phase with dioxane - water 2:3 (step B). Also separation by the 2D-TLC system comprising normal-phase chromatography on silica gel with tetrahydrofuran - heptane 2:3 and reversed-phase on RP-18 silica with methanol - water 3:2. Detection under UV 254 nm. One-dimensional HPTLC on RP-18 and cyanopropyl-modified silica gel.

J. Liq. Chromatogr. Relat. Technol. 33, 880-893 (2010). TLC of 6 carboxamide fungicides and 11 phenylbenzamide derivatives on silica gel and aluminium oxide impregnated by overnight predevelopment in n-hexane - paraffin oil 19:1 with mixtures of methanol - water, acetonitrile - water, tetrahydrofurane - water, and acetone - water with the concentration of organic modifier varying in steps of 5 %. Detection under UV light. The RMO and b values related to the molecular lipophilicity and to the specific hydrophobic surface area (b) of the solutes were calculated separately for each RP-TLC system and for each analyte. The correlations between the physicochemical parameters measured were calculated by linear regression analysis.

J. Planar Chromatogr. 8, 194-199 (1995). TLC of TMTD (thiram, tetramethyl dithiocarbamoyl disulfide), thiophanate-methyl and 3-indolebutyric acid on silica with hexane - ethyl acetate - acetone 4:4:1. Quantification by densitometry at 254 nm using either p-hydroxyacetanilide or propiophenone as internal standard.