نتایج جستجو برای: pesticides residues

تعداد نتایج: 104363  

2015
Meghdad Pirsaheb Mojtaba Limoee Farideh Namdari Razieh Khamutian

BACKGROUND Chlorinated pesticides have been used in pest control for several decades in the world. These compounds are still applied in many regions, and their continuous usage has resulted in their bioaccumulation and residue in the food chain. These residues could transfer to food products and accumulate in fat tissues. Undoubtedly, the breast milk could be a significant biomarker for estimat...

2013
Nevin E. Sharaf Nagat M. Amer Khadiga S. Ibrahim Eman M. El-Tahlawy

Organochlorine pesticides were widely used in Egypt; large quantities had been released into the environment, where they became persistent substances both in the environment and in the food chain. The non organized use of pesticides in Egypt has caused immense damage to the environment and human health. Recent studies have reported an association between exposure to organo-chlorines pesticides ...

A reliable, rapid and accurate method based on spiked calibration curves and direct sample introduction was developed for determination of 17 pesticide residues in rice by gas chromatography-mass spectrometry single quadrupole selected ion monitoring GC/MS-SQ-SIM. Sample preparation is based on extraction with acetonitrile without clean up. The use of spiked calibration curves for constructing...

Fatemeh Pirpedardar, Mohammad Parviz Orang Eyvazzadeh

Objective: The usage of pesticides has increased during the recent years. One the other hand, presence of harmful pesticides residue in rice and other food has caused a great concern among the consumers. Therefore, it is important to develop some pragmatic procedures to increase the food safety along with the reduction in consumption of pesticide residues. Methods: A gas chromatograph with elec...

Fatemeh Pirpedardar, Mohammad Parviz Orang Eyvazzadeh

Objective: The usage of pesticides has increased during the recent years. One the other hand, presence of harmful pesticides residue in rice and other food has caused a great concern among the consumers. Therefore, it is important to develop some pragmatic procedures to increase the food safety along with the reduction in consumption of pesticide residues. Methods: A gas chromatograph with elec...

2014
Ashutosh K. Srivastava Satyajeet Rai M. K. Srivastava M. Lohani M. K. R. Mudiam L. P. Srivastava

A total of 162 samples of different varieties of mango: Deshehari, Langra, Safeda in three growing stages (Pre-mature, Unripe and Ripe) were collected from Lucknow, India, and analyzed for the presence of seventeen organophosphate pesticide residues. The QuEChERS (Quick, Easy, Cheap, Effective, Rugged and Safe) method of extraction coupled with gas chromatography was validated for pesticides an...

2014
Sylvain Ilboudo Edwin Fouche Virginie Rizzati Adama M. Toé Laurence Gamet-Payrastre Pierre I. Guissou

In Burkina Faso, as in most Sahelian countries, the failure to follow good agricultural practices coupled with poor soil and climate conditions in the locust control context lead to high environmental contaminations with pesticide residues. Thus, consumers being orally exposed to a combination of multiple pesticide residues through food and water intake, the digestive tract is a tissue suscepti...

A reliable, rapid and accurate method based on spiked calibration curves and direct sample introduction was developed for determination of 17 pesticide residues in rice by gas chromatography-mass spectrometry single quadrupole selected ion monitoring GC/MS-SQ-SIM. Sample preparation is based on extraction with acetonitrile without clean up. The use of spiked calibration curves for constructing...

Background: Pesticides are widely used around the world, especially in underdeveloped and developing countries. However, the effect of residual amounts of these compounds on the physiological processes of the body has always been discussed. Materials and methods: In this experimental study, 27cucumber plants were sprayed with a concentration equal to twofold recommended dose (acetamiprid (50 g...

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