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.

J. Chromatogr. B 878 (17-18), 1337-1345 (2010). Use of rabbit liver esterase, Bacillus subtilis esterase, and cutinase from Fusarium solani pisi for the detection of 21 organophosphorus and carbamate pesticides by HPTLC-enzyme inhibition assays (HPTLC-EI) on silica gel with n-hexane - ethyl acetate - dichloromethane 13:4:3. HPTLC-EI assay of three groups of organophosphate and carbamate insecticides with 1) n-hexane - ethyl acetate 63:37, 2) chloroform - ethyl acetate 9:1, 3) n-hexane - acetone - dichloromethane 15:2:3. Detection by treatment with Fast Blue Salt B and enzymatically coupling to alpha-naphthol released from the respective acetate used as substrate. Quantification by densitometry at 533 nm. Calculation of enzyme inhibition factors derived from HPTLC-EI using linear calibration curves. Comparison to published inhibition constants showed good correlation. The limits of detection ranged from a few pg/zone for organophosphates as strongest inhibitors to a few ng/zone for most carbamates and was around 60 ng/zone for chlorpyrifos and 14 ng/zone for parathion without oxidation. The CUT was able to detect insecticides of high and low inhibitory power in the range of ng to µg/zone. The HPTLC-EI with rabbit liver esterase was applied to the analysis of apple juice and drinking water samples spiked with paraoxon (0.001 mg/L), parathion (0.05 mg/L) and chlorpyrifos (0.5 mg/L). The mean recovery was 71-112 % with standard deviations of 2.0-18.3 %.

J. Planar Chromatogr. 4, 266-267 (1991). TLC of baygon, carbaryl, and carbofuran on silica with hexane – acetone 4:1. Detection with diazotized arylamines (aniline, p-chloroaniline, p-toluidine, sulfanilic acid, m-nitroaniline, sulfadiazine, and dapsone); dapsone was found to be the most suitable detection reagent. Detection limit ca. 0.1 µg. Simple, rapid and sensitive TLC method.

J. Planar Chromatogr. 19, 85-86 (2006). TLC of methomyl on silica gel with benzene - ethyl acetate 3:2 in a presaturated TLC chamber. After drying the plate was sprayed with 1 % phloroglucinol solution then with 50 % hydrochloric acid. The plate was heated at 100 °C for 5 min. Detection limit of the pink-violet spot was 5 µg.

J. Planar Chromatogr. 24, 545-546 (2011). TLC of carbosulfan and other commonly available carbamate pesticides, organochlorine pesticides, organophosphorus pesticides, synthetic pyrethoids and extracts from biological tissues on silica gel with toluene - acetone 9:1 with chamber saturation for 30 min. Detection by spraying with 10 % sodium hydroxide solution followed by 4-aminoantipyrine reagent and then with potassium hexacyanoferrate(III) reagent. The red-colored zone for carbosulfan was observed immediately. Carbaryl, propoxur, and carbofuran form a red-colored zone at the hRf values of 52, 45, and 48, respectively, whereas the hRf value of carbosulfan was 94.

J. Planar Chromatogr. 4, 494-496 (1991). TLC of carbaryl and related compounds (bavistin, propoxur, etc.) on silica with e.g. benzene, chloroform, carbon tetrachloride and distilled water. Detection by spraying with p-nitrobenzenediazonium tetrafluoroborate solution. Quantification by estimation of spot areas against standards.