Results 11 to 20 of about 3,472 (173)
A typical enzyme activity for glutathione conjugation indicates exposure of pacu to pollutants
Neotropical Ichthyology, 2022 Functional enzyme assays to detect sublethal poisoning of Neotropical fish are paramount. Accordingly, we assayed a glutathione S-transferase (GST) activity in liver and kidney cytosols from Piaractus mesopotamicus injected with methyl parathion or benzo[
Frederico F. Bastos +4 more
doaj +1 more source
Frontiers in Materials, 2022 Rapid methyl parathion detection was measured using a fabricated glassy carbon electrode (GCE) sensor designed using the layer-by-layer (LBL) method. Multilayer assemblies were developed on the glassy carbon electrode by alternating depositions of anions
Nafeesa Allah Ditta +13 more
doaj +1 more source
Electrochemical Organophosphorus Pesticide Detection Using Nanostructured Gold-Modified Electrodes
Sensors, 2022 In this study, nanostructured gold was successfully prepared on a bare Au electrode using the electrochemical deposition method. Nanostructured gold provided more exposed active sites to facilitate the ion and electron transfer during the ...
Han-Wei Chang +5 more
doaj +1 more source
Isolation of Methyl Parathion-Degrading Strain M6 and Cloning of the Methyl Parathion Hydrolase Gene [PDF]
Applied and Environmental Microbiology, 2001 ABSTRACT A degradative bacterium, M6, was isolated and presumptively identified as Plesiomonas sp. strain M6 was able to hydrolyze methyl parathion to p -nitrophenol. A novel organophosphate hydrolase gene designated mpd was selected from its genomic library ...
C, Zhongli, L, Shunpeng, F, Guoping
openaire +2 more sources
Presence of oOrganophosphate Insecticides in fish of the Amazon River [PDF]
Acta Amazonica, 2003 Trace levels of three organophosphate insecticides (OPI) were detected in eight fish species from the region of Santarém, State of Pará, Brazil. Individual concentrations of OPI in fish ranged from less than the detection limit to 2,1 ppb.
Nicolas SOUMIS +6 more
doaj +1 more source
Assessment of fall-back MRLs for revoked CXLs previously implemented in the EU legislation. [PDF]
EFSA JAbstract In the 56th meeting of the Codex Committee on Pesticide Residues (CCPR meeting) held in September 2025 and the subsequent 48th meeting of the Codex Alimentarius Commission (CAC) (November 2025), 352 Codex MRLs (CXLs) for 30 active substances (a.s.) were revoked.
European Food Safety Authority (EFSA).
europepmc +2 more sources
Türkiye Tarımsal Araştırmalar Dergisi, 2017 Fenarimol and methyl parathion are pesticides that have been used in agriculture for several years. These pesticides have significant effects on environmental and human health. Therefore, we investigated the effects of methyl parathion and fenarimol on
Ferda ARI +3 more
doaj +1 more source
Journal of Saudi Chemical Society, 2018 Natural carbohydrate polymer β-d-glucan extracted from Tricholoma crassum (Berk.) Sacc. predominantly linked by β-glycosidic bonds have been used to synthesize gold nanoparticles (Au NPs).
Sutanuka Pattanayak +4 more
doaj +1 more source
International Journal of Electrochemical Science, 2016 Large use of pesticide is an important issue in modern agriculture. Development of a reliable analytical method for pesticide detection in essential for many fields. In this work, we proposed an electrochemical based detection method for methyl parathion,
Jianwei Jiang +3 more
doaj +1 more source
Enzymatic biosensor based on DropSens screen-printed electrodes for the determination of carbofuran and methyl parathion in drinking water [PDF]
Ciência Rural: In this study, a new biosensor system was developed and optimized for the detection of the insecticides carbofuran and methyl parathion in drinking water using commercial DropSens electrodes.
Helilma de Andrea Pinheiro +9 more
doaj +1 more source