Results 171 to 180 of about 3,734 (213)
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Transformation of the Fungicide Chlorothalonil by Fenton Reagent
Journal of Agricultural and Food Chemistry, 2002A modified Fenton reagent (Fe(3+)/H(2)O(2)) transformed the fungicide chlorothalonil within 60 min in aqueous solution at unadjusted pH. Transformation varied with ferric salt. Transformation was greatest with ferric nitrate and least when ferric sulfate was used. UV irradiation enhanced the transformation of chlorothalonil.
Jong-Woo, Park +3 more
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Determination of chlorothalonil in produce by enzyme immunoassay
Bulletin of Environmental Contamination and Toxicology, 1995Chlorothalonil, 2,4,5,6-tetrachloroisophthalonitrile, is a broad-spectrum non-systemic fungicide extensively used on fruits, vegetables and other agricultural products worldwide. The maximum residue limit (MRL) for chlorothalonil in agricultural commodities ranges from 0.3 to 15 ppm. Its residues in crops have been analyzed commonly by GC with electron-
J M, Yeung, W H, Newsome
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Photochemical reaction of chlorothalonil in organic solvents
Bulletin of Environmental Contamination and Toxicology, 1979Substantial residues (up to 40 ppm) of methyl parathion were extracted from clothing worn in a treated cotton field on the 1st day following application. Delaying re-entry until the 2nd or 4th day following application reduced residues by about 90 and 99%, respectively, as compared to the 1st day. The amount of residue accumulated on clothing increased
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Chemical and photochemical transformation of chlorothalonil
Toxicological & Environmental Chemistry, 1993Photolysis of chlorothalonil (2,4,5,6‐tetrachloro isophthalonitrile) in dichloromethane by ultra violet light (>290 nm) was investigated. It gave 2,5,6‐trichloro‐1,4‐dicyanobenzene and 5,6‐dichloro‐l,4‐dicyano‐benzene as the major photoproducts. Photolysis was followed by a steady decrease in chlorothalonil and monodehalogenated product concentration ...
P. Dureja, S. Walia
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Facial dermatitis caused by chlorothalonil in a paint
Contact Dermatitis, 1990A case of acute facial dermatitis caused by staying in a summer collage is described, Patch testing revealed contact allergy to the paint Pá Trä Lasur®, and to chlorothalonil. Chlorothalonil was used as a pesticide in the paint. Chemical analyses using high‐performance liquid chromatography and gas chromatography/mass spectrometry were performed to ...
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Canadian Water Resources Journal, 1994
A stream sampling program to monitor chlorothalonil and three metabolite residues was carried out in six agricultural sub-basins on Prince Edward Island. No chlorothalonil residues were observed but one metabolite 3-cyano-2,4,5,5-tetrachlorobenzamide was observed in two samples of the 78 collected.
Hugh J. O’Neill +2 more
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A stream sampling program to monitor chlorothalonil and three metabolite residues was carried out in six agricultural sub-basins on Prince Edward Island. No chlorothalonil residues were observed but one metabolite 3-cyano-2,4,5,5-tetrachlorobenzamide was observed in two samples of the 78 collected.
Hugh J. O’Neill +2 more
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Toxicity of chlorothalonil to marine organisms
Fisheries Science, 2012We evaluated the acute toxicity of the antifouling biocide 2,4,5,6-tetrachloro-1,3-benzenedicarbonitrile (chlorothalonil, TPN) to an alga (Skeletonema costatum), crustacea (Tigriopus japonicus, kuruma prawn Marsupenaeus japonicus), and a teleost fish (red sea bream Pagrus major) commonly found in the coastal waters of Japan.
Toshimitsu Onduka +5 more
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Degradation of Chlorothalonil in Irradiated Water/ Sediment Systems
Journal of Agricultural and Food Chemistry, 2006Water/sediment systems were used to investigate partitioning behavior between waters and sediments, as well as the degradation of the fungicide chlorothalonil (CHT) in each matrix. Experiments were run in the light and dark simultaneously for 30 days in both creek and pond sediment systems.
Jeong-Wook, Kwon, Kevin L, Armbrust
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Determination of chlorothalonil residues in coffee
Toxicological & Environmental Chemistry, 2000Coffee beans were treated with the fungicide chlorothalonil (2,4,5,6‐tetrachloro‐1,3‐benzene‐dicarbonitrile) and the residues were determined by high‐performance liquid Chromatograph (HPLC). Several techniques including Soxhlet extraction (SE), microwave‐assisted extraction (MAE) and accelerated solvent extraction (ASE) were compared for the extraction
Biratu O. Negeri +2 more
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Guang pu xue yu guang pu fen xi = Guang pu, 2015
The fluorescence spectrum was studied for the chlorothalonil (0.2928 mg x mL(-1)) using spectrofluorophotometer. The experiment results showed that the characteristic peaks (352 and 366 nm) are found in the spectrum of chlorothalonil standard solution when the excitation wavelength is 320 nm.
Ren-dong, Ji +4 more
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The fluorescence spectrum was studied for the chlorothalonil (0.2928 mg x mL(-1)) using spectrofluorophotometer. The experiment results showed that the characteristic peaks (352 and 366 nm) are found in the spectrum of chlorothalonil standard solution when the excitation wavelength is 320 nm.
Ren-dong, Ji +4 more
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