Results 21 to 30 of about 11,031 (219)

Validation of a multi-residue method to determine deltamethrin and alpha-cypermethrin in mosquito nets by gas chromatography with electron capture detection (GC-µECD) [PDF]

, 2013
Background: Nowadays long-lasting insecticidal mosquito nets (LNs) are frequently used around the world to protect people against malaria vectors. As they contain insecticide, laboratory control is needed to check whether the content of the active ...
Ouattara, Jean Pierre Nabléni, Pigeon, Olivier, Spanoghe, Pieter   +2 more
core   +2 more sources

Determinação de herbicidas usados no cultivo de arroz irrigado na região sul do estado de Santa Catarina através da SPME-GC-ECD Determination of herbicides used in irrigated rice cultivation in the south of Santa Catarina using SPME-GC-ECD

Química Nova, 2008
Evaluation of the pollution by the herbicides alachlor, propanil and atrazine in water samples from four rivers in the cities of Turvo and Meleiro, south of Santa Catarina State, was made using the SPME-GC-ECD method.
Léa L. F. Costa, Ernani S. Sant'ana, Eliane A. Suchara, Vanira S. Benato, Eduardo Carasek   +4 more
doaj   +1 more source

The co-pyrolysis of flame retarded high impact polystyrene and polyolefins [PDF]

, 2007
The co-pyrolysis of brominated high impact polystyrene (Br-HIPS) with polyolefins using a fixed bed reactor has been investigated, in particular, the effect that different types brominated aryl compounds and antimony trioxide have on the pyrolysis ...
Bhaskar, T., Hall, W.J., Mitan, N., Muto, A., Sakata, Y., Williams, P.T.   +5 more
core   +1 more source

Optimisation and application of polybrominated diphenyl ethers extraction method [PDF]

Zbornik Matice Srpske za Prirodne Nauke, 2019
The optimal conditions for the extraction of eight polybrominated diphenyl ethers (PBDEs) were determined using 32 factorial design of experiments (DOE).
Stojić Nataša S., Pucarević Mira M., Prokić Dunja S., Štrbac Snežana R., Joksimović Ana S.   +4 more
doaj   +1 more source

Metabolism of profenofos to 4-bromo-2-chlorophenol, a specific and sensitive exposure biomarker. [PDF]

, 2013
Profenofos is a direct acting phosphorothioate organophosphorus (OP) pesticide capable of inhibiting β-esterases such as acetylcholinesterase, butyrylcholinesterase, and carboxylesterase.
Chi, Lai-Har, Dadson, Oswald A, Ellison, Corie A, Farahat, Fayssal M, Farahat, Taghreed, Lein, Pamela J, McGarrigle, Barbara P, Olson, James R, Singleton, Steven T   +8 more
core   +1 more source

Pesticide residues in vegetables in four regions of Jilin Province

International Journal of Food Properties, 2020
A study of pesticide residues was investigated in vegetable samples to highlight the trend of drugs obtained from the Jilin Province, China. Total of 230 samples obtained from four regions over the period 2016–2017 were screened for 18 pesticides that ...
Di Hu, Mengmeng Jiang, Ting Ge, Xu Liu, Ziqi Li, Jinhong Liu, Ketong Zhu   +6 more
doaj   +1 more source

Separation and recovery of materials from scrap printed circuit boards [PDF]

, 2007
Printed circuit boards from waste computers, televisions, and mobile phones were pyrolysed in a fixed bed reactor with the aim of separating and recovering the organic and metallic materials.
Balabanovich, Balabanovich, Balabanovich, Barontini, Barontini, Barontini, Barontini, Bhaskar, Blazso, Blazso, Bradna, Brebu, Chien, Cui, Cunliffe, Fisk, Fukushima, Goosey, Hall, Jawitz, Kaminsky, Lassen, Lee, Lee, Luda, Luda, Marsanich, Murphy, Paul T. Williams, Rajput, Shimasaki, Sivalingam, Vainiotalo, Whelan, William J. Hall, Williams, Williamson   +36 more
core   +1 more source

Fe3O4 nanoparticle-modified multi-walled carbon nanotubes for the determination of synthetic pyrethroids in human blood

Journal of Forensic Science and Medicine, 2019
In this study, a sensitive and rapid magnetic solid-phase microextraction (MSPE) procedure based on Fe3O4 nanoparticle-modified, multi-walled carbon nanotubes combined with a gas chromatography/electron capture detector (GC/ECD) was developed to quantify
Cui Yanhua, Shen Weidong, Yang Fan, Pan Yaoyue, Zhang Suling, Yao Weixuan   +5 more
doaj   +1 more source

Processing waste printed circuit boards for material recovery [PDF]

, 2007
PURPOSE We have investigated the use of pyrolysis for the processing of waste printed circuit boards (PCBs). The aim was to make the process of separating the organic, metallic, and glass fibre fractions of PCBs much easier and therefore make ...
Hall, W.J., Williams, P.T
core   +1 more source

Determination of Gaseous and Particulate Secondary Amines in the Atmosphere Using Gas Chromatography Coupled with Electron Capture Detection

Atmosphere, 2022
The aim of this study was to develop and optimize methods for the determination of gaseous and particulate (PM2.5) secondary amines (SAs) in the atmosphere using gas chromatography coupled with electron capture detection (GC-ECD) following chemical ...
Thu Thi Hoai Mai, Hekap Kim
doaj   +1 more source