Results 51 to 60 of about 19,418 (264)

Determination of pesticides in fruit and fruit juices by chromatographic methods. An overview [PDF]

, 2011
In order to combat a variety of pests, pesticides are widely used in fruits. Several extraction procedures (liquid extraction, single drop microextraction, microwave-assisted extraction, pressurized liquid extraction, supercritical fluid extraction ...
Delerue-Matos, Cristina, Domingues, Valentina F., Fernandes, Virgínia C., Mateus, Nuno   +3 more
core   +1 more source

Implementation of the methodology QuEChERS in the residual pesticide analysis in white corn (Zea mays)

Temas Agrarios, 2015
The use of pesticides on maize crops during and after harvest constitutes a serious health and environmental risk if its prevalence remains during the consumption line.
Martha I. Páez, Jina M. Martínez
doaj   +1 more source

Overview of the Evolution and Trends of the QuEChERS Sample Preparation Procedure

Reviews of environmental contamination and toxicology
The quick, easy, cheap, effective, rugged, and safe (QuEChERS) method is a sample preparation technique originally used in analytical chemistry for the extraction and purification of pesticide residues in food.
J. M. Veiga-del-Baño, P. Andreo‐Martínez, G. Pérez-Lucas, Simón Navarro   +3 more
semanticscholar   +1 more source

The role of GC-MS/MS with triple quadrupole in pesticide residue analysis in food and the environment [PDF]

, 2013
Gas chromatography coupled to tandem mass spectrometry (GC-MS/MS) using a triple quadrupole (QqQ) analyzer has in the last few years become a powerful technique for the determination of pesticide residues due to its robustness, and excellent sensitivity ...
Beltran Arandes, Joaquin, Cervera Vidal, María Inés, Hernandez, Felix, Pitarch, Elena, Portoles, Tania   +4 more
core   +1 more source

Determination of 34 Insecticide Residues in Vegetables by QuEChERS-High-Performance Liquid Chromatography Triple Quadrupole Linear Ion Trap Tandem Mass Spectrometry

Shipin gongye ke-ji
This article established a rapid detection method for 34 pesticides in vegetables by combining QuEChERS purification method with high-performance liquid chromatography triple quadrupole linear ion trap tandem mass spectrometry. The samples were extracted
Jingyang LUO, Jiao LI, Jian GUAN, Qiaolian LI, Yansong WANG, Shuai YUAN   +5 more
doaj   +1 more source

Development and validation of a GC-ECD method for pesticide residue detection in flour [PDF]

Makedonsko Farmacevtski Bilten
This study aimed to optimize and validate a rapid, reliable and accurate method for quantitative determination of pesticide residues in flour matrix.
Margarita Timofejeva, Anita Najdenkoska, Biljana Bauer   +2 more
doaj   +1 more source

Determination of fenpropathrin residue by QuEChERS method and GC/MS [PDF]

Arthropods, 2022
Chemical pesticides are used worldwide to control pests. This study investigated the residues of the pesticide fenpropathrin in greenhouse tomatoes (Vendor variety).
Bahareh Rafiei, Seyed Reza Bastan
doaj  

Development of a High-Throughput Screening Analysis for 195 Pesticides in Raw Milk by Modified QuEChERS Sample Preparation and Liquid Chromatography Quadrupole Time-of-Flight Mass Spectrometry

Separations, 2022
This study aimed to develop a simple, high-throughput method based on modified QuEChERS (quick, easy, cheap, effective, rugged, and safe) followed by liquid chromatography quadrupole time-of-flight mass spectrometry (LC-Q-TOF/MS) for the rapid ...
Xingqiang Wu, Kaixuan Tong, Changyou Yu, S. Hou, Yujie Xie, C. Fan, Hui Chen, Meiling Lu, Wenwen Wang   +8 more
semanticscholar   +1 more source

Ametryn removal by Metarhizium brunneum: Biodegradation pathway proposal and metabolic background revealed [PDF]

, 2018
Ametryn is a representative of a class of s-triazine herbicides absorbed by plant roots and leaves and characterized as a photosynthesis inhibitor. It is still in use in some countries in the farming of pineapples, soybean, corn, cotton, sugar cane or ...
Abigail, Allan, Anna Kuśmierska, Bernat, Bernat, Borges, Chen, Chen, Chirnside, Długoński, Elbashir, Fang, Fujii, Gao, Govantes, Grillo, Hayes, Ji, Krishnan, Lee, Liang, Liu, Liu, Lobos, Ma, Navaratna, Noguchi, Payá, Pereira, Peters, Prosen, Przemysław Bernat, QuEChERS, Rafał Szewczyk, Rocha, Różalska, Sandoval-Carrasco, Scialli, Shah, Signorelli, Soboń, Solomon, Stoker, Szewczyk, Szewczyk, Tejada, Tripathi, Velisek, World Health Organization   +48 more
core   +1 more source

DETERMINAÇÃO DE MULTIRRESÍDUOS DE AGROTÓXICOS EM MÉIS PRODUZIDOS NA REGIÃO DO TRIÂNGULO MINEIRO POR UHPLC-MS/MS

Química Nova
Excessive use of pesticides can lead to the accumulation of residues in different parts of plants, endangering various species and contaminating foods.
Renata A. G. Silva, Anizio M. Faria
doaj   +1 more source