Results 51 to 60 of about 253,981 (246)

MULTICOMPONENT DETERMINATION OF ORGANOCHLORINATED COMPOUNDS IN MILK BY GAS CHROMATOGRAPHY WITH ELECTRON-CAPTURE DETECTION AFTER LIQUID-LIQUID EXTRACTION

Agricultura, 2009
This paper reports a multiresidue analytical method based on liquid-liquid extraction and capillary gas chromatography with electron-capture detection (LLE-GC-ECD). The determined analytes belong to two organochlorinated compound classes: polychlorinated
Mirela Miclean, Lacrimioara Senila, Adriana Gog, Cecilia Roman, I. Groza   +4 more
doaj   +1 more source

Long‐term impact of exposure to Royal Guard, a pyriproxyfen‐based bed net, on pyrethroid‐resistant malaria vectors from Cameroon using DNA‐based metabolic resistance markers

Pest Management Science, Volume 81, Issue 4, Page 2165-2180, April 2025.
We used recently detected P450 DNA‐based markers of pyrethroid resistance in both Anopheles funestus and Anopheles gambiae to demonstrate that although pyrethroid‐resistant mosquitoes have higher ability to survive and live longer after exposure to Royal Guard, this net significantly affects their lifespan, blood feeding ability and interestingly ...
Emilie S Ngongang‐Yipmo, Magellan Tchouakui, Benjamin D Menze, Riccado F Tiomela, Derrick Fofie, Vanessa B Ngannang‐Fezeu, Jean L Mugenzi, Flobert Njiokou, Charles S Wondji   +8 more
wiley   +1 more source

Pesticide residues in Junca Onion (Allium fistulosum) cultivated in Risaralda, Colombia

Semina: Ciências Agrárias, 2020
By 2050, the world population will reach 9.2 billion, increasing the food demand by twice. Lowering loss due to pests is still challenging, where pesticides play an important role, but its indiscriminate use causes inadequate residual amounts to be ...
Juan Pablo Arrubla Velez, Nathaly Villa Pulgarín, Eddi Arsail Grisales Betancur, Jose Manuel Grisales Bedoya, Melissa Andrea Gómez Benitez, Gloria Edith Guerrero Álvarez, Diego Paredes Cuervo   +6 more
doaj   +1 more source

Organochlorine pesticide residues in farmed fish in Machakos and Kiambu counties, Kenya

, 2016
This study was conducted to evaluate occurrence of organochlorine pesticide residues in Oreochromis niloticus fish reared by aquaculture in Kiambu and Machakos Counties.
Isaac Omwenga, L. Kanja, J. Nguta, J. Mbaria, P. Irungu   +4 more
semanticscholar   +1 more source

Insights on caesarean section in the southern tamandua (Tamandua tetradactyla)

Veterinary Record Case Reports, EarlyView.
Abstract An adult female southern tamandua (Tamandua tetradactyla) was rescued and taken to a veterinary centre for wildlife care. The patient's evaluation revealed an abnormal neurological status, along with prostration, diarrhoea, dehydration and bilateral corneal ulcers. Insecticide poisoning (carbamate, organophosphate or organochlorine) and canine
Diego Rodrigues Gomes, Gabriel Corrêa de Camargo, Zara Alves Lacerda, Eunice Oba, Fabiana Ferreira de Souza   +4 more
wiley   +1 more source

Relation between the pluviometric characteristics and the levels of organochlorine residues in a river

Cuadernos de Investigación Geográfica, 2013
The concentrations of organochlorine insecticide residues was investigated during four well defined periods in samples of water from the River Almar (province of Salamanca, Spain).
Angel Puerto Martín, José A. García Rodríguez, Alberto Saldaña Moral   +2 more
doaj   +1 more source

Fetal exposure to a mixture of endocrine‐disrupting chemicals and biomarkers of male fecundity: A population‐based cohort study

Andrology, EarlyView.
Abstract Background Fetal exposure to endocrine‐disrupting chemicals (EDCs) has been associated with reduced male fecundity, but with few studies considering chemical mixtures. Objectives We assessed the association between fetal exposure to a mixture of EDCs and biomarkers of male fecundity in young adulthood.
Sidsel Dan Hull, Karin Sørig Hougaard, Gunnar Toft, Kajsa Kirstine Ugelvig Petersen, Esben Meulengracht Flachs, Christian Lindh, Cecilia Høst Ramlau‐Hansen, Lauren A. Wise, Allen Wilcox, Zeyan Liew, Jens Peter Bonde, Sandra Søgaard Tøttenborg   +11 more
wiley   +1 more source

Determination of 16 Kinds of Organochlorine and Pyrethroid Pesticide Residues in Nuts by Gas Chromatography

Shipin gongye ke-ji
The purpose of this paper is to establish an analytical method for the determination of 16 organochlorine and pyrethroid pesticide residues in nuts by gas chromatography (GC).
Na LI, Wenfeng ZHU, Guodong CHENG, Tingting JIANG, Ting WANG, Changfei JI   +5 more
doaj   +1 more source

Pesticide residue accumulation in buffalo ovaries: a potential hazard to fertility

Indian Journal of Animal Sciences, 2014
The present study was conducted on 58 female buffaloes subjected to slaughtering at a local abattoir. The study investigated the presence of pesticide residues in their blood, ovarian tissue as well as follicular fluid samples.
U RATNAKARAN, S P S GHUMAN, J S BEDI, J P S GILL   +3 more
doaj   +1 more source

Multi-residue Analysis of Organochlorine Pesticides in Cocoa Beans (Theobroma cacao) and Soils from Ondo, Nigeria

Pakistan Journal of Analytical & Environmental Chemistry, 2020
Organochlorine pesticides (OCPs) residues were determined in a total of 160 samples comprising of cocoa beans and soil collected from four major cocoa farms in Ondo, Nigeria.
Ihedioha Janefrances N, Ejalonibu Murtala A, Ekere Nwachukwu R   +2 more
doaj   +1 more source