Results 111 to 120 of about 284 (122)
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Electroanalysis, 1997
AbstractA differential pulse voltammetric method for the determination of fenobucarb is proposed. This N‐methylcarbamate pesticide is hydrolyzed in alkaline medium (0.02 M NaOH during ten min), and the resulting product 2‐sec‐butylphenol is oxidized at the glassy carbon electrode giving rise to a peak at a potential near 750 mV (pH 3.5).
Kauffmann, Jean-Michel +4 more
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AbstractA differential pulse voltammetric method for the determination of fenobucarb is proposed. This N‐methylcarbamate pesticide is hydrolyzed in alkaline medium (0.02 M NaOH during ten min), and the resulting product 2‐sec‐butylphenol is oxidized at the glassy carbon electrode giving rise to a peak at a potential near 750 mV (pH 3.5).
Kauffmann, Jean-Michel +4 more
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Journal of Chromatography B, 2017
A modified quick, easy, cheap, effective, rugged, and safe (QuEChERS) extraction method coupled with liquid chromatography-electrospray ionization tandem mass spectrometry (LC-ESI+/MS-MS) was developed for quantification of fenobucarb residues in animal food products, such as porcine muscle, egg, and whole milk, and aquatic food products, such as eel ...
Zhang, Dan +10 more
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A modified quick, easy, cheap, effective, rugged, and safe (QuEChERS) extraction method coupled with liquid chromatography-electrospray ionization tandem mass spectrometry (LC-ESI+/MS-MS) was developed for quantification of fenobucarb residues in animal food products, such as porcine muscle, egg, and whole milk, and aquatic food products, such as eel ...
Zhang, Dan +10 more
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Environmental Toxicology and Chemistry, 2006
AbstractWith the expansion of agricultural areas within the Mekong River Delta in Vietnam, a concurrent, dramatic increase has occurred in agrochemical usage. To date, little consideration has been given to the negative impacts of this agricultural activity on the aquatic resources of the region.
Van Cong, Nguyen +2 more
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AbstractWith the expansion of agricultural areas within the Mekong River Delta in Vietnam, a concurrent, dramatic increase has occurred in agrochemical usage. To date, little consideration has been given to the negative impacts of this agricultural activity on the aquatic resources of the region.
Van Cong, Nguyen +2 more
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Ecotoxicology, 2000
Effects of the insecticide fenobucarb on 2 mayfly species, Epeorus latifolium and Baetis thermicus, were examined in indoor model streams. Aqueous concentrations of fenobucarb residues in the model streams were 69–71% of its nominal level until 24 h, except at low concentrations (less than 2 μg l−1 in the water) in the water.
Mitsuru Tada, Shigehisa Hatakeyama
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Effects of the insecticide fenobucarb on 2 mayfly species, Epeorus latifolium and Baetis thermicus, were examined in indoor model streams. Aqueous concentrations of fenobucarb residues in the model streams were 69–71% of its nominal level until 24 h, except at low concentrations (less than 2 μg l−1 in the water) in the water.
Mitsuru Tada, Shigehisa Hatakeyama
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Environmental Science and Pollution Research, 2023
This study reports a liquid phase microextraction method based on binary extraction solvents, which were used to preconcentrate chlorbenside and fenobucarb from aqueous samples for determination by gas chromatography mass spectrometry. Parameters including the type, ratio, and volume of binary solvents, disperser solvent type and volume, and vortex ...
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This study reports a liquid phase microextraction method based on binary extraction solvents, which were used to preconcentrate chlorbenside and fenobucarb from aqueous samples for determination by gas chromatography mass spectrometry. Parameters including the type, ratio, and volume of binary solvents, disperser solvent type and volume, and vortex ...
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Environmental Science and Pollution Research, 2016
Organophosphates (e.g. chlorpyrifos ethyl) and carbamates (e.g. fenobucarb) are commonly used to control a wide range of pests in rice fields of the Mekong Delta in Vietnam. This study assesses the combined effect of chlorpyrifos ethyl (CPF) and fenobucarb (F), applied at concentrations used by rice farmers, on the brain acetylcholinesterase (AChE ...
Nguyen Thanh, Tam +2 more
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Organophosphates (e.g. chlorpyrifos ethyl) and carbamates (e.g. fenobucarb) are commonly used to control a wide range of pests in rice fields of the Mekong Delta in Vietnam. This study assesses the combined effect of chlorpyrifos ethyl (CPF) and fenobucarb (F), applied at concentrations used by rice farmers, on the brain acetylcholinesterase (AChE ...
Nguyen Thanh, Tam +2 more
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Journal of Electroanalytical Chemistry, 2019
Abstract A sensitive and rapid method for the determination of fenobucarb by using screen-printed carbon electrode modified with graphene nanoribbons - ionic liquid - cobalt phthalocyanine (GNRs-IL-CoPc/SPCE) composites based on flow injection analysis (FIA) was developed and applied to vegetable samples.
Kunpatee, Kanjana +6 more
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Abstract A sensitive and rapid method for the determination of fenobucarb by using screen-printed carbon electrode modified with graphene nanoribbons - ionic liquid - cobalt phthalocyanine (GNRs-IL-CoPc/SPCE) composites based on flow injection analysis (FIA) was developed and applied to vegetable samples.
Kunpatee, Kanjana +6 more
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Bulletin of Environmental Contamination and Toxicology, 2016
This study assesses the effects of sequential applications of the insecticides Bassa 50EC (fenobucarb-F) and Vitashield 40EC (chlorpyrifos ethyl-CPF), sprayed at concentrations used by rice farmers in the Mekong Delta, on the brain acetylcholinesterase (AChE) in climbing perch fingerlings.
Nguyen Thanh, Tam +4 more
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This study assesses the effects of sequential applications of the insecticides Bassa 50EC (fenobucarb-F) and Vitashield 40EC (chlorpyrifos ethyl-CPF), sprayed at concentrations used by rice farmers in the Mekong Delta, on the brain acetylcholinesterase (AChE) in climbing perch fingerlings.
Nguyen Thanh, Tam +4 more
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Journal of Entomological Research, 2016
Field evaluation of the bio-efficacy of pre mix insecticides fenobucarb 20% EC + buprofezin 5% SC along with traditional insecticides as foliar spray against brown plant hopper Nilaparvata lugens, white-backed plant hopper Sogatella furcifera and green leaf hopper Nephotettix nigropictus was undertaken in a progressive farmer's field at Nabagram ...
P.K. Sarkar, Debashis Roy
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Field evaluation of the bio-efficacy of pre mix insecticides fenobucarb 20% EC + buprofezin 5% SC along with traditional insecticides as foliar spray against brown plant hopper Nilaparvata lugens, white-backed plant hopper Sogatella furcifera and green leaf hopper Nephotettix nigropictus was undertaken in a progressive farmer's field at Nabagram ...
P.K. Sarkar, Debashis Roy
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International Journal of Environmental Research, 2023
Aly Derbalah, Hiroshi Sakugawa
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Aly Derbalah, Hiroshi Sakugawa
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