In this study, we scrutinized the degradation process of phoxim in the presence of Ag+ ions, maintaining a 1:1 molar ratio under diverse temperature conditions. Phoxim was chosen as the model compound to devise experimental methodologies that would shed light on the kinetic and degradation pathways within a time span of 0 to 184 min across varying temperatures. The Arrhenius equation was harnessed to ascertain the activation energies linked with the degradation of phoxim. The application of the Arrhenius equation enables the computation of the reaction constant at a given temperature, thereby paving the way for the prediction of phoxim concentrations at different temperatures. The second-order rate constant for the reaction was observed to lie within the range of 0.035 to 0.128 L mol-1min-1, and the half-life of the reaction fluctuated between 5.2 and 17 min across different temperatures.•The study investigates the degradation of phoxim in the presence of Ag+ ions at various temperatures.•The Arrhenius equation was used to calculate the activation energies and predict phoxim concentrations at different temperatures.•The second-order rate constant for the reaction ranged from 0.035 to 0.128 L mol-1min-1, with the half-life varying between 5.2 and 17 min.
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http://dx.doi.org/10.1016/j.mex.2024.102927 | DOI Listing |
Aquat Toxicol
January 2025
College of Animal Science and Technology, Anhui Agricultural University, Hefei 230036, China. Electronic address:
Aquat Toxicol
November 2024
College of Animal Science and Technology, Anhui Agricultural University, Hefei 230036, China. Electronic address:
J Hazard Mater
December 2024
School of Life Science, Nanchang University, Nanchang 330031, China. Electronic address:
Acetylcholinesterase (AChE), an essential neurotransmitter hydrolase, is targeted by organophosphorus and carbamate pesticides, and its number varies among species. In Aleuroglyphus ovatus, a pest mite that endangers health and economy, Aoace1 and Aoace2 have been identified encoding 590 and 460 amino acids, respectively, with characteristic structures, including catalytic triads, oxyanion holes, acyl pockets, peripheral anion, and catalytic anion sites. Phylogenetic analysis reveals distinct clusters for each gene.
View Article and Find Full Text PDFMethodsX
December 2024
Department of Comparative Bioscience, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran.
In this study, we scrutinized the degradation process of phoxim in the presence of Ag+ ions, maintaining a 1:1 molar ratio under diverse temperature conditions. Phoxim was chosen as the model compound to devise experimental methodologies that would shed light on the kinetic and degradation pathways within a time span of 0 to 184 min across varying temperatures. The Arrhenius equation was harnessed to ascertain the activation energies linked with the degradation of phoxim.
View Article and Find Full Text PDFPestic Biochem Physiol
September 2024
Key Laboratory of Agri-products Quality and Biosafety, Ministry of Education, Anhui Provincial Key Laboratory of Integrated Pest Management on Crops, School of Plant Protection, Anhui Agricultural University, Hefei 230036, China. Electronic address:
The black cutworm, Agrotis ipsilon (Lepidoptera: Noctuidae), is an important agricultural pest. Phoxim is an organophosphate insecticide that has been widely used to control A. ipsilon.
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