نتایج جستجو برای: pesticide residue

تعداد نتایج: 61939  

2014
Jingzhe Xue Zhihui Luo Ping Li Yaping Ding Yi Cui Qingsheng Wu

Here we reported a residue-free green nanotechnology which synergistically enhance the pesticides efficiency and successively eliminate its residue. We built up a composite antifungal system by a simple pre-treating and assembling procedure for investigating synergy. Investigations showed 0.25 g/L ZnO nanoparticles (NPs) with 0.01 g/L thiram could inhibit the fungal growth in a synergistic mode...

2012
Khalil Talebi Vahid Hosseininaveh Mohammad Ghadamyari

Pesticides are essential tools in integrated pest management (IPM) programs which can have the great influence if they are used properly. However, the adverse impacts of these compounds on the environment and ecosystem should not be ignored. The ecological effects of pesticides can be discussed from different points of view. Some of the significant consequences of use of pesticides are side eff...

2010
Yunxia Luan Hua Ping Ligang Pan

The temporal and spatial variations of phoxim residue in apples were studied. The insecticide phoxim was applied by spraying according to the recommended dosage. The phoxim residues in different parts of apple were extracted with acetonitrile, purified by primary secondary amine (PSA) and C18 filler, and then determined by gel permeation chromatography-gas chromatograph mass spectrometer (GPC-G...

Journal: :caspian journal of chemistry 2013
mohammad reza hadjmohammadi hosein asri s. saman s.j. nazari

an extraction method based on matrix solid phase dispersion (mspd) and high performance liquid chromatography with uv detection for quantification of two widely used pesticides (malathion and α-endosulfan) in khazar rice from north of iran were investigated. the ratio of solid phase (adsorbent) to sample, types of eluting solvent and its volume were optimized to achieve the highest recoveries f...

2017
Shazia Akhtar Karam Ahad

Livestock is an important sub-sector of agriculture that plays a key role in economy of a country by contributing to GDP (Gross Domestic Product) and in total export. Pakistan is the 5 largest milk producer in the world with a total milk production of about 46.44 billion liters per anum. Almost 68% milk is produced by buffalo and 27% by cow. Pesticides used in agriculture sector may transfer to...

Journal: :E-Cucba 2023

The intensive production of horticultural crops generates large amounts agricultural biomass (BA), which is burned in the openfield or deposited landfills becoming an environmental problem, especially if they are contaminated by pesticide residues. Thestudy aimed to evaluate presence pesticides BA bell pepper, jalapeño and poblano using aQuEChERS method coupled LC/MS-MS GC/MS/MS. An analysis ma...

Journal: :Standards 2023

This paper gives an overview of scientific challenges in implementing and certifying “Zero residue” approach. The rationale behind the concept is that final control commodities during/immediately after harvesting should confirm traces all used plant protection products are less than or equal to 0.01 mg/kg. To evaluate risks applying this concept, FMEA (Failure Mode Effect Analysis) as a tool ha...

Journal: :Horticulturae 2022

Endotherapy is a potential eco-friendly alternative to conventional pesticide application techniques in coconut (Cocos nucifera Linn.) palms. Field trials applying cyproconazole by vegetative endotherapy using two different injection methods, pressurized and nonpressurized, were tested. Stem samples above the point collected 2 45 days after application, fruits up 120 application. Residue analys...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید