Results 31 to 40 of about 310,357 (268)

Atmospheric pressure gas chromatography-time-of-flight-mass spectrometry (APGC-ToF-MS) for the determination of regulated and emerging contaminants in aqueous samples after stir bar sorptive extraction (SBSE) [PDF]

, 2014
This work presents the development, optimization and validation of a multi-residue method for the simultaneous determination of 102 contaminants, including fragrances, UV filters, repellents, endocrine disruptors, biocides, polycyclic aromatic ...
Arbulu, Azzouz, Barco-Bonilla, Buchholz, Cacho, Camino-Sánchez, Canellas, de Sousa, Domeño, Eduardo González-Mazo, Esteve-Turrillas, Gago-Ferrero, Gomez, Jaspers, Johnsen, Kataoka, Kawaguchi, Kawaguchi, Krüger, Kumirska, Liu, Machado, Magi, Marina G. Pintado-Herrera, Negreira, Ochiai, O′Toole, Pablo A. Lara-Martín, Pintado-Herrera, Pintado-Herrera, Portolés, Prieto, Pérez-Carrera, Quintana, Ramírez, Rodil, Sampedro, Sanchez-Ortega, Stevens   +38 more
core   +2 more sources

Analysis and dietary exposure assessment of organophosphorus pesticide residues in vegetables in Hubei Province

Zhongguo shipin weisheng zazhi
ObjectiveTo explore the characteristics of organophosphorus pesticide residues in vegetables and the dietary exposure risks for residents in Hubei Province.Methods2 182 vegetable samples were collected from all 17 cities of Hubei Province to determine ...
XIONG Bi, YANG Qingqing, LI Yonggang, LUO Ping, TANG Lin, WEN Sheng   +5 more
doaj   +1 more source

Electrochemical Process for Diazinon Removal from Aqueous Media: Design of Experiments, Optimization, and DLLME-GC-FID Method for Diazinon Determination [PDF]

, 2015
In the present study, electrochemical process was studied via removal of diazinon (O,O-diethyl O-2-isopropyl-6-methylpyrimidin-4-yl phosphorothioate) as an insecticide/ acaricide organic case study.
Daraei, H., Faez, E., Hosseini, G., Maleki, A., Shahamat, Y.D.   +4 more
core   +1 more source

Electroanalytical Methods for Detecting Pesticides in Agricultural Products: a Review and Recent Developments

International Journal of Electrochemical Science, 2020
In modern agricultural production, the extensive use of pesticides plays an irreplaceable and important role in agricultural production because it effectively improves crop yield.
Guobin Chen, Peien Wang
doaj   +1 more source

Interactions of cyclodextrins and their derivatives with toxic organophosphorus compounds

Beilstein Journal of Organic Chemistry, 2016
The aim of this review is to provide an update on the current use of cyclodextrins against organophosphorus compound intoxications. Organophosphorus pesticides and nerve agents play a determinant role in the inhibition of cholinesterases.
Sophie Letort, Sébastien Balieu, William Erb, Géraldine Gouhier, François Estour   +4 more
doaj   +1 more source

Macrophage TNF-α mediates parathion-induced airway hyperreactivity in guinea pigs. [PDF]

, 2013
Organophosphorus pesticides (OPs) are implicated in human asthma. We previously demonstrated that, at concentrations that do not inhibit acetylcholinesterase activity, the OP parathion causes airway hyperreactivity in guinea pigs as a result of ...
Allison D. Fryer, Becky J. Proskocil, Borish L, Crain EF, Crinnion WJ, David B. Jacoby, Donald A. Bruun, Gallo MA, Grodzki AC, Lu C, Nico van Rooijen, Pamela J. Lein, Rozyk KJ   +12 more
core   +1 more source

Investigating organophosphorus pesticides in dates from Khesht City (Iran): Impact of washing and assessment of the health risks

Applied Food Research
Dates are rich in nutrients, making them popular all over the world as healthy fruits. Due to the use of pesticides by gardeners to control pests in date palm farms, date fruits may contain pesticides, which could potentially endanger the health of ...
Shamim Mosallaei, Zeynab Tabatabaei, Abooalfazl Azhdarpoor   +2 more
doaj   +1 more source

Biosensor for Direct Determination of Fenitrothion and EPN Using Recombinant Pseudomonas putida JS444 with Surface Expressed Organophosphorus Hydrolase. 1. Modified Clark Oxygen Electrode

Sensors, 2006
This paper reports a first microbial biosensor for rapid and cost-effectivedetermination of organophosphorus pesticides fenitrothion and EPN. The biosensorconsisted of recombinant PNP-degrading/oxidizing bacteria Pseudomonas putida JS444anchoring and ...
Ashok Mulchandani, Wilfred Chen, Priti Mulchandani, Yu Lei   +3 more
doaj   +1 more source

Resistance status of the carmine spider mite, Tetranychus cinnabarinus and the twospotted spider mite, Tetranychus urticae to selected acaricides on strawberries. [PDF]

, 2015
The carmine spider mite, Tetranychus cinnabarinus (Boisduval) and the twospotted spider mite, Tetranychus urticae Koch, are serious pests of strawberries and many other horticultural crops.
Bi, Jian-Long, Niu, Zi-Mian, Toscano, Nick C, Yu, Lu   +3 more
core   +1 more source

Confirmation of Pesticide Residue Identity. VIII. Organophosphorus Pesticides

Journal of AOAC INTERNATIONAL, 1974
Abstract A chemical confirmation for 5 organophosphorus pesticides is described. After extraction and quantitation by flame photometric detector gas-liquid chromatography (CLC), the organophosphorus pesticides are hydrolyzed in a 10% methanolic-potassium hydroxide solution, followed by derivatization with pentafluorobenzyl bromide to ...
J A, Coburn, A S, Chau
openaire   +2 more sources