J. Planar Chromatogr. 35, 431-434 (2022). HPTLC of carbaryl in biological material on silica gel with hexane - acetone 4:1. Detection by spraying with reagent A (4 g sodium hydroxide in 100 mL water), waiting for 10 min, followed by spraying with reagent B (2 g vanillin in 100 mL acetone). Brown-colored zone with white background was clearly visible. The hRF values for carbaryl were 22 and 54.

J. Planar Chromatogr. 34, 183-186 (2021). HPTLC of carbosulfan in viscera sample (pieces of stomach, small and large intestine with contents, liver, spleen, kidney, and lungs) on silica gel with hexane - acetone 4:1. Detection by spraying with reagent A (10 % sodium hydroxide), then 10 min later with reagent B (2 g sodium nitrite added to 2 g copper acetate in 100 mL distilled water), followed by heating at 100 °C for 15 min. The hRF value for carbosulfan was 48. The color visibility of pink-colored zones was up to 72 h.

J. Planar Chromatogr. 33, 533-546 (2020). Review of chromogenic spray reagents for the detection and identification of organic pesticides by TLC and HPTLC. Specific applications for the analysis of organochlorine pesticides, organophosphate pesticides, carbamates and synthetic pyrethroids were described.

Proc. Intern. Symposium on TLC with special Emphasis on OPLC, Szeged, 30-31 (1984). TLC of thiocarbamates: butylate, EPTC, cycloate, molinate, pebulate on silica with hexane - ether - acetone 15:4:1. Detection with 1 % Gibbs reagent in acetic acid and heating at 110 °C for 10 minutes. Sensibility 0.05 mg/spot. Scanning by absorbance at 450 nm.

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.

Budapest Chromatography Symposium, June 13, 1985. TLC on silica of nitrophenols with hexane - acetone 4:1 after NH3 exposure, and of carbamates with hexane - ether 1:3.

Analyst 119, 415-416 (1994). TLC of carbaryl and the hydrolysis product of carbaryl, 1-naphthol, on silica with hexane - acetone 4:1 in a saturated chamber. Detection after drying by spraying with 10% sodium hydroxide solution, followed by freshly prepared 1% ammonium cerium(IV) nitrate reagent. A violet spot was observed; on spraying with 10% sodium nitrite solution the intensity of the colour increased. The sensitivity of the reagent is abt. 0.1 µg.

Chromatogr. 3, 148-201 (1985). (Chinese) (Simultaneous determination of diethyl-4-methyl-1,3- phenylene-dicarbamate and its intermediates by thin-layer chromatography.) TLC of diethyl-4-methyl-1,3-phenylene-dicarbamate, ethyl-2-methyl-5-nitrophenylcarbamate, ethyl-3-nitro-4-methylphenyl-carbamate and 2,4-dinitrotoluene on silica with cyclohexane - ethyl acetate - methanol 14:6:0.5. Quantification by densitometry.