Results 171 to 180 of about 9,746 (218)

Rapid and Sensitive Quantitation of Fipronil and Its Metabolites Fipronil Sulfone, Fipronil Sulfide, and Fipronil Desulfinyl in Zebrafish Tissues by UHPLC‐MS/MS

Journal of Separation Science
ABSTRACT An ultra‐high performance liquid chromatography‐tandem mass spectrometry (UHPLC‐MS/MS) method was developed and validated for the simultaneous determination of fipronil and its three metabolites (fipronil sulfone, fipronil sulfide, and fipronil desulfinyl) in zebrafish tissues.
Meichen, Liu, Yingxia, Guo, Jinhe, Liu, Zihan, Tang, Yufeng, Guo, Xintao, Liu, Deshan, Zhou, Lei, Yin, Meiyun, Shi   +8 more
openaire   +2 more sources

The roles of GSTs in fipronil resistance in Nilaparvata lugens: Over-expression and expression induction.

Pesticide Biochemistry and Physiology, 2021
As one of the most important detoxification enzymes in insects, Glutathione S-transferases (GSTs) play key roles in insecticide resistance via direct metabolism and protection against oxidative stress induced by insecticide exposure.
Haoli Gao, Xumin Lin, Baojun Yang, Zewen Liu   +3 more
semanticscholar   +1 more source

Sorption and Desorption of Fipronil in Midwestern Soils

Bulletin of Environmental Contamination and Toxicology, 2009
Fipronil, {5-amino-1-[2,6-dichloro-4-(trifluoromethyl)phenyl]-4-[(trifluoromethyl)sulfinyl]-1H-pyrazole-3-carbonitrile} is commonly applied to soil to protect structures against termite infestations. The fate and bioavailability of fipronil in soil is dependent upon the variability of sorption processes and will differ from soil to soil.
Neil A, Spomer, Shripat T, Kamble
openaire   +2 more sources

Efficacy of fipronil in the treatment of feline cheyletiellosis

Veterinary Parasitology, 2005
The purpose of the present study was to confirm the efficacy of 10% (w/v) fipronil spot-on (Frontline spot-on for cats) in the treatment of feline cheyletiellosis under field conditions. A total of 16 cats of different breeds, sexes, 4 months to 14 years of age and weighing 0.5-6 kg were treated with a single topical application of 10% (w/v) fipronil ...
F, Scarampella, M, Pollmeier, M, Visser, A, Boeckh, P, Jeannin   +4 more
openaire   +2 more sources

Cytotoxicity of fipronil on mice liver cells

Microscopy Research and Technique, 2012
AbstractIn the present study, mice livers were examined following exposure to different doses of fipronil (15, 25, and 50 mg/kg). Histological and histochemical techniques were used to determine the cytotoxic potential of this compound and to assess the damage it caused to livers.
de Oliveira, Patricia Rosa, Bechara, Gervasio Henrique, Denardi, Sandra Eloisi, Oliveira, Rodrigo Juliano, Camargo Mathias, Maria Izabel   +4 more
openaire   +3 more sources

Enantioselectivity in fipronil aquatic toxicity and degradation

Environmental Toxicology and Chemistry, 2009
Abstract Fipronil and its transformation products are being increasingly detected in aquatic ecosystems as a result of widespread use. Fipronil is a chiral compound, and enantioselectivity may greatly impact its environmental fate and effects.
Mae G, Nillos, Kunde, Lin, Jay, Gan, Svetlana, Bondarenko, Daniel, Schlenk   +4 more
openaire   +2 more sources

Genotoxic and mutagenic effects of fipronil on mice

Experimental and Toxicologic Pathology, 2012
The toxic effects of several compounds on ecosystems are not restricted to ecological disturbances, and may also affect long-term human health. Fipronil is highly efficient in the control of pests, including those resistant to pyrethroid, organophosphate, and carbamate insecticides. Relatively little is known about the action of fipronil in vertebrates.
de Oliveira, Patricia Rosa, Bechara, Gervasio Henrique, Denardi, Sandra Eloisi, Oliveira, Rodrigo Juliano, Camargo Mathias, Maria Izabel   +4 more
openaire   +3 more sources

Uptake and Xylem Transport of Fipronil in Sunflower

Journal of Agricultural and Food Chemistry, 2006
The phenylpyrazole insecticide, fipronil, is used in seed coating against Agriotes larvae, which infest mainly corn and sunflower. Coating the seeds of the cultivated plants with fipronil has proven its effectiveness against Agriotes populations. In the case of sunflower or even corn, the possible root uptake of this insecticide may lead to a toxic ...
Aajoud, A., Raveton, M., Aouadi, H., Tissut, M., Ravanel, P.   +4 more
openaire   +3 more sources

Upconversion nanoparticles-based background-free selective fluorescence sensor developed for immunoassay of fipronil pesticide

Journal of Food Measurement & Characterization, 2023
Litao Yin, Xuetao Hu, Mengyu Hao, Jiyong Shi, Xiaobo Zou, Keza Dominique Dusabe   +5 more
semanticscholar   +1 more source

A first approach using micellar electrokinetic capillary chromatography for the determination of fipronil and fipronil‐sulfone in eggs

ELECTROPHORESIS, 2019
AbstractFipronil is an insecticide that is not approved in the European Union in food. In 2017, fipronil was involved in a European health alert due to its presence in fresh hen eggs because of an illicit use in poultry farms, so reliable methods are needed to determine fipronil and its main metabolites in these matrixes.
M. Mar Aparicio‐Muriana, Ivona Lhotská, Ana M. García‐Campaña, Francisco J. Lara   +3 more
openaire   +2 more sources